| Abbreviation | Definition |
|---|---|
| LTNC | Long Time No Chat |
| LTNS | Long Time No See |
| LTNT | Long Time No Talk |
| LTNT | Long Time No Type |
| LTR | Long Term Relationship |
| LTRH | Leave This Right Here |
| LTS | Let Them Speak |
| LTS | Look To See |
| LTUG | Learn To Use Google |
| LTW | Live To Win |
| LTWB | Let The War Begin |
| LU | Lov'n User |
| LU4E | Love You Forever |
| LUAAF | Love You As A Friend |
| LUB | Love You Baby |
| LUFU | Let Us Feed You |
| LUG | Love You Guys |
| LUK | Let Us Know |
| lul | laughing ultra loud |
| LUL | Laughing Uncontrollably Loud |