| Abbreviation | Definition |
|---|---|
| CWS | Cool Web Stuff |
| CWU | Cool With yoU? |
| CWW | Chat Window Warriors |
| CWYL | Chat With Ya Later |
| CWYL | Chat With You Later |
| CWYS | Chat With You Soon |
| CX | C x |
| CY | Crazy You |
| CY | See You |
| CYA | Configure Your Autoexec |
| CYA | Cover Your A** |
| CYA | See Ya |
| CYA | See You |
| CYAL8R | See You All Later |
| CYALA | See U Later Alligator |
| CYBER | Changing Yesterdays Behavior For Enhanced Results |
| CYBER | Children's Yearly Best Ever Reads |
| CYC | Can You Call |
| CYC | Carry Your Cunny |
| CYC | Crazy Young Cutie |