| Abbreviation | Definition |
|---|---|
| MISS | Mature Independent Sexy Sister |
| MISS | Meadow Intelligence and Secret Service |
| MIST | Massachussetts Institute of Santaland Technology |
| MIST | Morbid Insomniacs Short Topics |
| MISTAH | Money Is Something To Always Have |
| MIT | Mad Introverted Techies |
| MIT | Masochistic Institute of Technology |
| MIT | Money Institute Taker |
| MIT | Money Instutute Taker |
| MIT | Montesinos Institute Of Trickery |
| MIT | Morons In Training |
| MITRE | Massachusetts Institute Of Technology Reject Engineers |
| MITS | Mis-managed Information Transfer System |
| MITSUBISHI | Must Investigate That Squeak Under Bonnet I Shall Hit It |
| MIU | Mission Impossible University |
| MIW | Monster In the Waterhole |
| MJ | Major Jerkoff |
| MJ | Mental Jacker |
| MJ | Mighty Jack |
| MJM | Meet Joe Mac |