barn find

bit by a barn mouse

tipsy; slightly drunk

born in a barn

In a past tense: criticizing the person to whom the phrase is directed for inappropriately, and usually neglectingly, leaving an exterior door or window open, considered ill-mannered.

find another gear

To suddenly achieve an extra burst of athletic performance, especially after a sustained period of competitive exertion.

find fault

To criticize something excessively.

find it in one's heart

To be sufficiently compassionate or gracious (to do something, especially to forgive someone or be willing to help them in some way).

find no bones in

To experience no hindrances or obstacles; to do something without hesitation.

find one's ass with both hands and a flashlight

Synonym of know one's ass from a hole in the ground.

find one's feet

To grow in confidence in a new situation as one gains experience.