| Abbreviation | Definition |
|---|---|
| CCC | Casual Chinese Chick |
| CCC | Coolnamedenied's Cybercave Cramsession |
| CCDF | Collector's Car Discussion Forum |
| CCL | Certified Chat Leader |
| CCL | Couldn't Care Less |
| CCMEO | Casually Crying My Eyes Out |
| CCP | Cute Cool Popular |
| CCP | Cute, Cool Popular |
| CCP | Cute, Cool & Popular |
| CCU | Clueless Computer User |
| CD | Cross Dresser |
| CD9 | Parents around (Code 9) |
| C-DAY | Celebration Day |
| CDCS | Cri Du Chat Syndrome |
| CDLY | Cowardly |
| CEFA | Cookie Eating Fat A** |
| CEG | Cool Evil Guy |
| CF | Chem Fun |
| CFC | Chat First Com |
| CFC | Chat First Crew |