| Abbreviation | Definition |
|---|---|
| CB | Cactus Butt |
| CB | Chaturbate |
| CCMS | Content Community Management System |
| CCSLC | Chris Creamer's Sports Logos Community |
| CEI | Cum Eating Instruction |
| CERG | Computer Emergency Readiness Group |
| CF | Classic Fedora |
| CGA | Cool Guy Adventures |
| CH | Chat Hour |
| CHEVY | Country Hicks Eating Vagina Yearly |
| CHROME | Definitions of Chrome |
| CIGA | Comrades in Golden Arms |
| CJPW | Centralized Job Posting Website |
| CLS | Cumulative Layout Shift |
| CMOT | Country Music On Tour |
| CMS | Complaint Management System |
| CN | Cyber Nations |
| CNMP | Customer Network Management Processor |
| COTW | Courts of the World |
| CP | Club Penguin |