| Abbreviation | Definition |
|---|---|
| CSU | Call-it-fun State University |
| CSU | Call-it-phoney State University |
| CSU | Camp Suicide University |
| CSU | Carolina Salt University |
| CSU | Castro State-run University |
| CSU | Cauliflower State University |
| CSU | Chulavista State University |
| CSU | Coloradical Soviet University |
| CSU | Colorado Soviet University |
| CSU | Colorado Spam University |
| CSU | Colorectal State University Fort Collins |
| CSU | Colorectal State University Los Angleles |
| CSU | Commiefornia State University |
| CSU | Commierado Soviet University |
| CSU | Commuter School University |
| CSU | Crappy Socialist University |
| CSUF | 'Cause Some of Us got F's |
| CSX | Chessie System Xtra |
| CSX | Chicken Shit Express |
| CSX | Corporate Stupidity Xtreme |