| Abbreviation | Definition |
|---|---|
| STD | Snails Taste Delicious |
| STD | Stop The Disease |
| STD | Super Toddler Drool |
| STEEPL | Stupid Telephone Existance Evacuates People's Lives |
| STEM | Sorcery Trickery Enchantments and Magic |
| STEWART | Stop Talking Especially When Arrogance Rules Them |
| STF | Sid The Fly |
| STF | Sunny Tang Family |
| STFU | Smell The French's Underwear |
| STFU | Smells like The French Union |
| STFU | Snap The Farmers Underwear |
| STFU | Society To Find Unconformities |
| STFU | Socks Television Fascist Underwear |
| STFU | Steal The Funky Unicorn |
| STFU | Stealing Turkeys From Uncle |
| STFU | Stop This Foolish Ululating |
| STFU | Stop Tickling Fluffy Unicorns |
| STFU | Super Toga Football Umbrella |
| STG | Sulky The Great |
| STI | Sick Turbocharged Insanity |