| Idiom | Meaning | Example | 
| mop the floor with us | 
perform so well the audience wants more, she peed
 | 
We loved the Gagnon concert. He mopped the floor with us.
 | 
| mop up | 
correct mistakes, clean up a mess left by others
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The manager told us he would not mop up after us. We have to fix our own mistakes.
 | 
| moppie | 
mobile office professional, ambitious business people, yuppie
 | 
A lot of moppies lost their jobs when the oil industry declined.
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| more money than brains | 
rich but not intelligent, money to burn, moneybags
 | 
He bought a house but didn't use it, rent it or sell it. He has more money than brains!
 | 
| more power to you | 
you deserve more support, we hope you succeed because you are kind
 | 
When she told us about her plan to help abused children,
we said, "More power to you, Ms. Wah."
 | 
| more than meets the eye | 
(See there's more than meets the eye)
 | 
 | 
| more than welcome | 
we invite you, please come to our place, feel free
 | 
Mary invited them to stay. "You are more than welcome to sleep at our place," she said.
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| more than you can shake a stick at | 
a lot, too many, oodles  
 | 
Alfreda has more cats than you can shake a stick at - over 30!
 | 
| mortal coil | 
(See this mortal coil)
 | 
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| mothball | 
put away, put on a shelf
 | 
The boss mothballed the report. The owners never saw it.
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