| Abbreviation | Definition |
|---|---|
| MUMBERE | Most Ugandan Bosses Eat Rat's Eggs. |
| Mumbi | Most handsome Unites Marvelous Brilliant Intensive |
| MUMEN | Most Useful Men Exude Normalcy |
| MUMU | Mu mu mu |
| MUPPET | Most Un-Professional Person Ever Trained |
| MURA | Making Up Random Acronyms |
| MUSE | Miserable Ugly Spastic Entities |
| MUSIC | Melody Universality Sincerity Individuality & Clarity |
| MUSIC | Melody Universality Sincerity Individuality & Clarity |
| MUSIC | Mental Unstabality Stress Indeed Contract killer |
| MUSLIM | Man Under Supervision of Lord and Instructions of Mohammad |
| MUSTANG | Made Up by Scavanger Taking Automotive Nessisary Gangrene |
| MUSTANG | Men Usually Stand Together And Never Go |
| MUSTANG | Must Use Sledgehammer To Activate Neutral Gear |
| MUSTANG | Must Use Strong Tape And Never Give-up |
| MUSTANG | Must Use Supercharger, Turbo, And Nitrous Gas |
| MUTE | Mercy Unto The Ears |
| MVA | Mitch's Voice Announcer |
| MVP | Marvel Vs Predators |
| MVP | Mediocre Vertical Passer |