| Abbreviation | Definition |
|---|---|
| MRS | Mister Right's Seamstress |
| MRS | Moronic Retards Society |
| MRY | My Rectum Yearnsforlittleboysweiners |
| MS | Mad Scientist |
| MS | Magic Shield |
| MS | Millions Shafted |
| MS | Minions Of Satan |
| MS | Mohd Sultan |
| MSA | Military States of America |
| MSA | Missouri Students Asylum |
| MSA | Must Snake All |
| MSA | My Sweet Audrina |
| MSC | Mother of Six Children |
| MS-DOS | My Son's Dead Old Son |
| MSDS | Material Safety Dummy Sheet |
| MSDS | May Stop Dirty Stains |
| MSDS | Most Solutions Deteriorate Slowly |
| MSF | Mad Sodding Frontrunner |
| MSF | Martha Stewart Functions |
| MSF | Minutes Seconds Fillaseconds |