| Abbreviation | Definition |
|---|---|
| CIMO | Crap In My Opinion |
| CIO | Check It Out |
| CIO | Cry It Out |
| CIP | Chat In Private |
| CIS | Can It Sam |
| CITW | Caught In The Web |
| CIY | Create It Yourself |
| CJ | Consistent Jackass |
| CJ | Crazy Jackass |
| CJ | Crude Jerk |
| CKTC | Curiosity Killed the Cat |
| CKTC | Curiosity Kills The Cat |
| CL | Crazed Lunatic |
| CLAYGo | CLean As You Go |
| CLJ | Cute Lil Jewels |
| CLSS | Cut Long Story Short |
| CLWK | Came Live When Kicked |
| CLWO | Can't Live Without |
| CM | Call Me |
| CM | Chat Maniac |