| Abbreviation |
Meaning |
| c | See |
| C&G | Chuckle and grin |
| c'mon | Come on |
| c-p | Sleepy |
| C/O | Care of |
| c/p | Crossposting |
| C/S | Change subject |
| C2C | Cam to cam |
| C4N | Ciao for now |
| C9 | Parent in room |
| Cab | Taxi |
| CAC | Cool as a cucumber |
| CAD | Control-alt-delete |
| Camping | Holding position |
| Carry | MOBA player role |
| CAS | Clothing Aquisition Syndrome |
| cata | Cataclysm |
| CB | Chris Brown |
| CBA | Can't be ar**d |
| CBF | Can't be bothered |
| CC | Crowd control |
| CC | Command Center |
| CC | I understand |
| CC | Credit card |
| CC | Carbon copy |
| CCG | Collectible card game |
| cd | Cooldown |
| CD9 | Parents are watching |
| CD99 | Parents are no longer watching |
| CDIWY | Couldn't do it without you |
| cdr | Cooldown reduction |
| ceebs | Can't be bothered |
| cell | Cell phone |
| CFS | Care for a secret? |
| CFV | Call for votes |
| CGM | Continuous Glucose Monitoring |
| CGMS | Continuous Glucose Monitoring System |
| char | Character |
| chargelot | Charge Zealot |
| Cheese | Cheap strategy |
| Cheesy | Corny |
| Chibi | Miniature Character |
| Chill | Relax |
| Chillax | Chill and relax |
| Chingo | Chat lingo |
| Choob | Skilled player who intentionally plays badly |
| chx | Chickens |
| cia | See ya |
| CICU | Can I see you? |
| cicyhw | Can I copy your homework |
| CID | Consider it done |
| CIL | Check in later |
| CIP | Customer initiated payment |
| CIP | Cell it please |
| CIS | Consumer Information Service |
| CM | Call me |
| CMB | Call me back |
| CME | Checking my e-mail |
| CMFWIC | Chief mo fo of who's in charge |
| CMIIW | Correct me if I'm wrong |
| cmon | Come on |
| CMS | Content Management System |
| CNP | Continued next post |
| CNRHKYITF | Chuck Norris roundhouse kick you in the face |
| COA | Course of action |
| COB | Close of business |
| COC | Code of conduct |
| COD | Call of Duty |
| COL | Crying out loud |
| combo | Combination |
| comp | Computer |
| convo | Conversation |
| coo | Cool |
| COS | Child over shoulder |
| CP | Club Penguin |
| CPE | Coolest Person Ever |
| CQC | Close quarters combat |
| CRAFT | Can't remember a freakin' thing |
| CRB | Come right back |
| CRBT | Crying real big tears |
| Crib | House |
| crit | Critical Strike |
| CRS | Can't remember stuff |
| CRTLA | Can't remember the three letter acronym |
| crz | Crazy |
| CS | Caesarean section |
| CS | ChatSlang.com |
| CS | Creep score |
| CSB | Cool story, bro |
| CSG | Chuckle snicker grin |
| CSL | Can't stop laughing |
| CTC | Call the cell |
| CTF | Capture the flag |
| CTFU | Cracking the f*** up |
| CTHU | Cracking the heck up |
| CTN | Can't talk now |
| CTO | Check this out |
| ctr | Center |
| CTRN | Can't talk right now |
| CTS | Change the subject |
| CU | See you |
| CU2 | See you too |
| cu2mr | See you tomorrow |
| CU@ | See you around |
| CUB | Call you back |
| cud | Could |
| CUL | Call you later |
| CUL | See you later |
| CUL | Catch you later |
| cul8r | See you later |
| cul8r | Call you later |
| cul8rm8 | See you later m8 |
| CULA | See you later alligator |
| CUOL | See you online |
| CUS | See you soon |
| cuz | Because |
| CWOT | Complete waste of time |
| CWYL | Chat with you later |
| CX | Correction |
| cya | See ya |
| cyal8r | See you later |
| CYB | Call you back |
| CYDI | Can ya dig it |
| CYE | Check your e-mail |
| CYF | Check your Facebook |
| CYFB | Check your Facebook |
| CYL | Catch ya later |
| CYM | Check your MySpace |
| CYO | See you online |
| CYOA | Cover your own a** |
| cyr | Call your |
| CYT | See you tomorrow |
| CYWW2BY | See ya, wouldn't want to be ya |
| cz | Because |
