put on airs

give oneself airs

To act pretentiously, or in a snobbish manner; to swagger.

not to put too fine a point on it

Used to apologize for a possibly impolite statement one is making; to put it bluntly; to express it in plain terms.

put a band-aid on a bullet wound

To inadequately treat a serious situation.

put a blanket over

Make (something) seem less serious.

put a bug in someone's ear

To make a small suggestion or give a hint that causes the listener to act.

put a damper on

To stop people from enjoying an activity.

put a foot wrong

To make a mistake.

put a gun to someone's head

To compel someone (to do something); to create a situation in which someone has no alternative course of action.