Internet Slang start's with C

C See
Computer language
Speed of light

C# Microsoft programming language

C&C Command and Conquer (game)

C&P Copy & Paste

C'MON Come On

C/D Confirm/Deny

C2C Consumer to Consumer
Cam to Cam

C4C Comment for Comment
Cam for Cam

C7AY Gay

C: Very happy

CAB Can't Be Assed

CABRON Bastard (Spanish for goat)

CACHE Store for temporary computer files

CACK S**t

CAD Computer Aided Design

CADDY Cadillac

CAKE Kilo of cocaine

CAKING Flirting

CAMEL Brand of cigarettes

CAMP Effeminate

CAN Bathroom
Jail
Buttocks

CANS Boobs
Headphones

CANTO Cantonese

CAPS Bullets
Mushrooms

CAPTCHA Completely Automated Public Turing Test To Tell Computers and Humans Apart

CARE I don't care

CAT Cool person
Computed Axial Tomography

CAUSE Because

CAZ Crazy in a nice way

CB Cock Block

CBA Can't Be Arsed

CBB Can't Be Bothered

CBBC Children's BBC

CBC Canadian Broadcasting Corporation

CBF Can't Be F***ed

CBFA Can't Be F***ing Arsed

CBFB Can't Be F***ing Bothered

CBJ Covered Blow Job (with condom)

CBS Can't Be Stuffed

CBT Cognitive Behavioural Therapy

CC Credit Card
Carbon Copy
Crowd Control
Country Code

CCC Coricidin Cough & Cold (Dextromethorophan or DXM).

CCNA Cisco Certified Network Associate

CCTV Closed-Circuit Television

CD Compact Disc
Cross Dresser

CDC Cult of the Dead Cow
Crudely Drawn Cock

CDMA Code Division Multiple Access (voice/data transmission)

CDN Canadian

CDP Calm Down Please

CDR Compact Disc Recordable

CEEB CBA

CEEBS CBA

CELL Cellphone

CEO Chief Executive Officer

CEPT Except

CEREAL Serious

CES Consumer Electronics Show

CF Cluster F***

CFC Chlorofluorocarbon

CFL Canadian Football League

CFM Come F*** Me

CFNM Clothed Female Naked Male

CFO Chief Financial Officer

CFS Covered Full Service

CFV Call For Votes

CG Computer Graphics

CGI Computer-Generated Imagery

CHA Yes

CHADROOL Stupid person

CHAO Goodbye (Spanish)

CHARLIES Boobs
Viet Cong

CHAV poorly educated, vulgar youth

CHAW Chewing tobacco

CHEA Yeah

CHEAP SKATE Mean/stingy person

CHEDDA Cash, money

CHEDDAR Money

CHEERIO Goodbye

CHEERS Thanks
Goodbye

CHEESE Drug, starter heroin
Money

CHEESY Corny, lame

CHEEZ Cheese

CHICK Girl

CHILAXING Chilling and relaxing

CHILL Relax, hang out

CHILLAX Chill and relax

CHINWAG Chat

CHIO Sexy, good looking, girl

CHIPOTLE Mexican-style restaurant

CHIRPSE Flirt

CHIZ Swiz, swindle

CHODE Short, fat penis

CHOLO Mexican Gangster

CHOO You

CHOOB High level player who acts like a noob

CHOONG Good looking, buff

CHOOT Vagina

CHOUT Chill Out
Watch Out

CHU You

CHUFF Vagina

CHUT Vagina

CIA Central Intelligence Agency

CIAO Italian for Hi or Bye

CIF Cum In Face

CIGGY Cigarette

CIHY Can I Help You?

CIM Cum in Mouth

CINI cinema

CINT C***

CIO Check It Out

CIR Committed Information Rate (minimum bandwidth)

CITA Caught In The Act

CL Chain Letter
Craig's List

CLARET Blood

CLASS Cool, excellent

CLB Creepy Little Bastard

CLI Command Line Interface

CLICK Kilometre

CLIQUE Group of friends

CLOUD The Internet (non-local storage, software etc)

CLOUD 9 Feeling of euphoria, high

CLUBBING Visiting nightclubs

CLUBHEAD Person who goes to clubs a lot

CM Call Me

CMAR Cry Me A River

CMB Call Me Back

CMC Casi Me Cago (Spanish LOL)

CMD Command

CMEO Crying My Eyes Out

CMI Count Me In

CMIIW Correct Me If I'm wrong.

CML Call Me Later

CMNF Clothed Male Naked Female

CMNT Comment

CMOS Complementary Metal-Oxide Semiconductor

CMS Content Management System

CMT Comment

CMU Cracks Me Up

CMYK Cyan, Magenta, Yellow, Key/blacK

CNN Cable News Network

CO Commanding Officer
Corrections Officer
Company
Counter Offer

COB Close Of Business

COCK Penis

COCK UP Mistake, mess

COCKY Thinking too highly of yourself

COD Cash On Delivery
Call Of Duty

COD4 Call Of Duty 4 (Game)

COED Coeducational (men and women together)

COF Cum On Face

COG Coalition of Gears (game)

COKE Cocaine
Coca Cola

COL Crying Out Loud

CONDO Apartment

CONGRATS Congratulations

CONVO Conversation

COO Cool

COOKIE Small file relating to a website

COOL Awesome, great

COOTC Come Out Of The Closet

COOTER Vagina

COP Officer of the law
Close of Play

COPACETIC Cool, OK, excellent

CORNY Uncool, overused

COS Because

COSPLAY Costume Play

COTCHING Relaxing, chilling

COUGAR Older woman looking for a younger man

COUGER Older woman looking for a younger man

COURSE Of course, certainly

COW Offensive term for a woman

COWGIRL Girl on top sex position

COYB Come On You Blues

COYS Come On You Spurs

COZ because

CP Child Porn

CPA Certified Piece of A$$

CPC Cost Per Click

CPL Cyberathlete Professional League (gaming)

CPR Cardiopulmonary Resuscitation

CPU Central Processing Unit

CQTMS Chuckle Quietly To Myself

CR Credit
Copyright
Carriage Return

CRABS Pubic lice

CRACK A form of cocaine

CRAFT Can't Remember A F***ing Thing

CRAIC Good times/gossip/music/drinking (Irish)

CRAP S**t

CRBT Crying Real Big Tears

CRC Cyclic Redundency Check
Chat Room Chuckle

CREASING Laughing

CREEP Weird, undesirable person

CREEPER Someone who views your profile but doesn't make contact

CREPS Trainers

CRIB House, residence

CRICKETS Said after a lame joke to break the silence

CRIMBO Christmas

CRIP Community Restoration in Progress (gang)
Gang member

CRM Customer Relationship Management

CRS Can't Remember S**t

CRUNK Crazy and drunk

CS Counter-Strike

CSA Cheap Shot Artist

CSB Cool Story Bro (sarcastic)

CSI Crime Scene Investigation (TV show)

CSL Can't stop laughing

CSP Casual Sex Partner

CSS Counter Strike: Source
Cascading Style Sheet

CST Central Standard Time

CTC call the cell

CTF Capture The Flag
Claim To Fame

CTFO Chill The F*** Out

CTFU Cracking The F*** Up
Cheer The F*** Up

CTM Chuckling To Myself

CTN Can't Talk Now

CTRL Control (key)

CTRN Cant Talk Right now

CTS Chuckles To Self

CTSO Cut That S**t Out

CU See You

CUCKOO Mad, bonkers, crazy

CUDDY Buddy, friend

CUFF Overprotect, smother

CUH Cousin, homie, bro

CUIAB See You In A Bit

CUL See You Later.

CUL8ER See You Later

CUL8R See You Later

CUM Semen
Orgasm

CUOL See You On Line

CUPPA Cup of (usually) tea

CUS Friend

CUT See You Tomorrow
See You There

CUTE Someone/thing that is attrative in an innocent way

CUTIE Cute, attractive person

CUTY Cutie

CUZ Because

CUZZO Friend

CV Curriculum Vitae, resume

CW Continuous wave, morse code

CWOT Complete Waste Of Time

CWTCU Can't Wait To See You

CWTSY Can't Wait To See You

CWYL Chat With You Later.

CYA See Ya

CYB Count Your Blessings

CYBER Online sex

CYBI Can You Believe It?

CYE Check Your Email

CYL Catch You Later

CYL8R see ya later

CYM Check Your Mail

CYO See You Online

CYT See You Tomorrow

CZ Condition Zero (game)