missing link
Something needed to complete a group; a missing part of a chain of things.
A 1936 penny was the missing link in John's collection of pennies.
The detective hunted for the fact that was the missing link in the case.
An unknown extinct animal that was supposed to be a connection between man and lower animals.
The missing link would be half man and half ape.
mixed blessing
Something good that has bad features.
John's new bicycle was a mixed blessing. The other boys were always asking John to ride it.
monkey business
Any unethical, illegitimate, or objectionable activity that is furtive or deceitful, e.g., undercover sexual advances, cheating, misuse of public funds, etc.
Обман, жульничество, надувательство, мошенничество, афера и т.д.
There is a lot of monkey business going on in that firm; you'd better watch out who you deal with!
The boy should stop the monkey business and do the job correctly.
Мальчику стоит прекратить жульничество и делать работу правильно.
Comical or silly actions; goofing off.
Комичные или глупые действия; "валяние дурака".
Come on boys, let's cut out the monkey business and get down to work!
Stop doing monkey business and start your homework!
Хватит дурачиться и начни делать свое домашнее задание!
moonshine
Illegally distilled alcoholic beverage made at home, mostly on a farm.
Grandpa is at it again in the barn, making moonshine out of plums.
morning after
The effects of drinking liquor or staying up late as felt the next morning; a hangover.
One of the troubles of drinking too much liquor is the morning after.
Mr. Smith woke up with a big headache and knew it was the morning after.
mouth-watering
Smelling or looking very good to eat.
It was a mouth-watering meal.
move in on
To take over something that belongs to another.
He moved in on my girlfriend and now we're not talking to each other.
moving spirit
The main figure behind a business or an activity; the one who inspires the others.
Mr. Smith is the moving spirit behind our expansion plans.