| Abbreviation | Definition |
|---|---|
| SRY | Sorry |
| SS | So Sorry |
| SSDD | Same Stuff, Different Day |
| SSF | SMS Spam Filtering |
| SSS | Sore Sour Soul |
| STAN | Send The Authorities Now |
| STAR | Stop Think Assess Respond |
| STD | Save The Date |
| STFD | Set The Fork Down |
| STFU | Shut The F*** Up |
| STFW | Search The Fine Web |
| STHU | Shut The Hell Up |
| STKY | Sticky |
| STN | Something That's Never .... |
| STO | Smoke This Over |
| STR | STRing |
| STS | Stay The Same |
| STT | Should Take Time |
| STYB | Soon Text You Back |
| SU | Shut Up |