| Abbreviation | Definition |
|---|---|
| OTH | On The Hour |
| Otis | Only The Illuminati Survives |
| OTJ | Out This Joint |
| OTK | Of The Keyboard |
| OTL | Out To Lunch |
| OTL | Over The Limit |
| OTLB | Out Tonight Lovely Boy |
| OTLO | Only The Loyal Ones |
| OTO | On Top Of |
| OTOH | n The Other Hand |
| OTOH | On The Other Hand |
| OTP | Off Topic Post |
| OTP | Oh The Pain |
| OTP | On The Phone |
| OTP | Over The ToP |
| OTQ | On The Queue |
| OTR | On The Rag |
| OTS | Obvious, To Some |
| OTS | Over The Shoulder |
| OTSD | On The Same Day |