| M$ | Micro$oft |
| MARINE | My Ass Riding In Navy Equipment; |
| MAY | Mad About You |
| MAYB | Mad About You |
| MBUC | Mind Bogglingly Unlikely Coincidence |
| MCIBTY(SN) | My Computer Is Better Than Yours (So Nyerrr) |
| MD | More Dirt (Physician) |
| MEGO | My Eyes Glaze Over |
| MFG | More Friendly Garbage! |
| MFIC | Mother F---er In Charge |
| MFWIC | Mother F---er What's In Charge |
| MGD | My Gameboy Died |
| MH | Mostly Harmless (5th part of THHGTTG) |
| MHDC(A) | My Hard Drive crashed (again) |
| MIL | Mother In Law |
| MILF | Mother I'd Like to F--- |
| MILG | Make It Look Good |
| MIPS | Meaningless Information Per Second |
| ML | More Later |
| MLA | Multiple Letter Acronym |
| MMIF | My Mouth Is Full |
| MOF | Matter Of Fact |
| MOR | Middle Of the Road |
| MORF | Male Or Female |
| MOS | Member of the Opposite Sex |
| MOTAS | Member Of The Appropriate Sex |
| MOTD | Message Of The Day |
| MOTH | Humorous Collectibles Forum variation on Member of the Month |
| MOTM | Member Of The Month |
| MOTOS | Member Of The Opposite Sex |
| MOTSS | Member Of The Same Sex |
| MS | More S---; More of the Same; (Masters Degree) |
| MSCEA | My Southern Comforts' Empty Again |
| MSS | Member of the Same Sex |
| MTFBWY | May The Force Be With You |
| MUD | Multi User Domain (or Dungeon) |
| MUF | Material Unaccounted For |
| MUNG | Mash/Mung Until No Good |
| MYOB | Mind Your Own Business |
Unless otherwise noted, all photos and text is Copyright © Richard G Lowe, Jr.