Important Idioms and Phrases starting with Alphabet- M
| S.No. | Idioms/Phrases | Meaning |
| 1. | Mad as a march hare | Crazy and insane |
| 2. | Make a clean breast | To confess especially something bad or illegal |
| 3. | Maiden name | A women’s surname before marriage |
| 4. | Maiden speech | First speech |
| 5. | Make a hash | To mess up |
| 6. | Make a mountain out of a mole hill | To exaggerate a minor difficulty |
| 7. | Make both ends meet | To live within one’s means |
| 8. | Make hay while the sun shines | To take the benefit of an opportunity |
| 9. | Make or mar | To make or destroy |
| 10. | Make the best of | Getting benefited from both the both the worlds sides |
| 11. | Make up one’s mind | To decide |
| 12. | Man of means | A wealthy man |
| 13. | Man of iron | Man with strong will-power |
| 14. | Man of letter | Learned person |
| 15. | Man of parts | A man of qualities |
| 16. | Man of spirit | A man full of enthusiasm |
| 17. | Man of straw | A weak person |
| 18. | Man of the world | An experienced person |
| 19. | Man of word | True to one’s word |
| 20. | Mare’s nest | A false invention |
| 21. | Midas touch | A man with extraordinary power or capacity to make any venture profitable |
| 22. | Mince matters | To moderate or restrain one’s language |
| 23. | To Mind one’s P’s and Q’s properly | Taking care of behaviour properly |
| 24. | Miss the boat | To lose an opportunity |
| 25. | Mother wit | Common sense |
| 26. | Move heaven and earth | To try one’s best |
| 27. | Much cry and little wool/ Much ado about nothing | Lot of fanfare for something which has very little importance.
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