| Abbreviation | Definition |
|---|---|
| CHAOS | Can't Have Anyone Over Syndrome |
| CHAOS | Create Havoc Around Our System |
| CHATIZE | Chatizing |
| CHB | Cold Hearted B*tch |
| CHC | Couldn't Honestly Care |
| CHK | Check |
| CHKN | Chicken |
| CHM | Charming |
| CIA | Can't Imagine Another |
| CIA | Covers Its A** |
| CIAO | Check It All Out |
| CIC | Chat In Character |
| CICO | Coffee In, Coffee Out |
| CICU | Can I Call You? |
| CID | Acid |
| CIHU | Can I Help You? |
| CIHY | Can I Help You |
| CILWY | Crazy In Love With You |
| CIM | Cooked In Marseille |
| CIMB | Crying in my beer |