| Abbreviation | Definition |
|---|---|
| SKS | Seriously Killer Stuff |
| SKY | So Kill Yourself |
| SL | Scots Lass |
| SLA | Some Lie Always |
| SLAAT | Slime Love At All Times |
| SLAM | So Learn About Me |
| SLAM | Stop Looking At Me |
| SLAP | Sounds Like A Progress |
| SLAPP | Sounds Like A Personal Problem |
| SLAW | Sounds Like A Winner |
| SLAY | So Look At Yourself |
| SLDG | Seguidores de la Grasa |
| SLFN | So Long For Now |
| SLIP | Something Lousy I Planned |
| SLO | Slow |
| SLOD | Star Like Original Design |
| SLPT | S***ty Life Pro Tips |
| SLR | Sorry for Late Reply |
| SLR | Sorry for Late Reply |
| SLR | Sorry, Late Reply |