To catch fire and burn. / (idiomatic, by extension) To be completely ruined or devastated.

Happy and cheerful.

Alternative form of don't look a gift horse in the mouth

plural of jack-in-the-box

Ellipsis of fools rush in where angels fear to tread.

A person who does not plan ahead and think matters through becomes involved in risky or unfavorable situations which prudent people avoid.

(idiomatic) A stinging rebuke or rebuff.

Of rain or other precipitation, very hard.

Alternative spelling of father-in-law

For; in support of; approving, supporting. / For the benefit of; to the order of. / Out of preference for.