M

| "Mind your beeswax" | Pay attention to your own affairs and not others; beeswax was used to fill pock marks and when it was to hot or the lady was sitting near a fire the beeswax would melt and women were not supposed to call attention to another woman's problems |
| "Mudsill" | Unkind Southern term for a Northerner |
| "Mule" | Meat |
| "Muster in, Muster out" | Enlistment and Discharge |