| Abbreviation | Definition |
|---|---|
| MTV | Monkeys Taking Viagra |
| MTV | Morally Tasteless Vagabonds |
| MTV | More Tazz Victims |
| MTV | More Trashy Videos |
| MTV | Morons That Vote |
| MTV | Mostly Teenage Vacuity |
| MTV | Mucho Tacky Veal |
| MTV | Music To Vomit |
| MTV | Musician's Television Vision |
| MTV | My Television Vomits |
| MU | Marvel Universe |
| MUAH | Multiple Unsuccessful Attempts to Humor |
| MUC | Mighty Unity Cartel |
| MUD | Most Ugly Dude |
| MUD | Multiple User Dungeon |
| MUFF | Major Undiscovered Female Fluff |
| MUFF | Many United For Feminism |
| MUH | My Unhandy Hubby |
| MULTICS | Many Unnecessarily Large Tables In Core Simultaneously |
| MUM | Mixed Up Mother |