| Abbreviation | Definition |
|---|---|
| CJ | Cobra Junk |
| CJ | Cocoa Jumper |
| CJ | Cool Jeep |
| CJ | Crap Jeep |
| CJV | Cannabis Joint Ventures |
| CK | Cereal Killer |
| CK | Cool Knight |
| CKS | Cat kissed Sam |
| CL | Crazy Letters |
| CLAH | Cackle Like A Hen |
| CLASS | Come Late And Sample Snacks |
| CLASS | Come Late And Start Sleeping |
| CLINTON | Call Lewinsky; I Need That Orgasm Now |
| CLINTON | Clinton's Lying Intensely Now To Overturn Nothing |
| CLITORIS | Committee for the Liberation and Integration of Terrifying Organisms and their Rehabilitation Into Society |
| CLM | Career Limiting Move |
| CLOSED | Chickens Loose On Scale Extremely Dangerous! |
| CLP | Compulsive Lying Party |
| CLQ | Can't Leave Quake |
| CLU | Chris Lovers Unite |