| Abbreviation | Definition |
|---|---|
| STUDENT | Study,Truthfulness,Unity,Discipline, Energy,Neat and Clean,Treasure. |
| STUPID | Super Talented Understand Person In District |
| STUPID | Super Talented Unique Person In Demand |
| STUPID | Super Talented Useful Personality In Demand |
| STUPID | Super Tall Unicorn In Denile |
| STV | Sexually Transmitted Voting |
| STYLE | Satisfaction Towards Younger Life Ever |
| STYM | Show Them Your Moves |
| SU | Sorceress University |
| SUBARU | Sometimes Useful But Always Really Underpowered |
| SUBARU | Sorry Unreal Bonzai Attempt at a Russian U |
| SUBARU | Sorta Ugly But Altogether Really Unique |
| SUBARU | Still Usable But All Rusty Undernearth |
| SUBARU | Stupid Urbanites Bumbling Along Roads Unpaved |
| SUBARU | Super Uper Beats A Rally Unit |
| Subaru | U R A BUS (Backwards) |
| SUCK | Silly Uncool Crazy Kenny |
| SUDJD | Super Ugly Dirty Jamaican Diarrhea |
| SuFi | Super Finger |
| SUG | Sugar |