(idiomatic) To profit from two things at the same time, especially when those things seem contradictory or incompatible.

Alternative form of set one's heart on

(idiomatic, euphemistic) Alternative form of close one's eyes and think of England: to accept unwanted sex due to social pressures.

(UK, Ireland) stingy, frugal.

Alternative form of take the law into one's own hands

(intransitive, idiomatic) To punish someone according to one's own idea of justice, without consideration for the role of law enforcement authorities.

(idiomatic) To have good intentions.

(US, slang) To behave in a wild and carefree manner, so as to use up excess energy or exuberance.

To be at risk of sudden change; to be in an unstable state.

To have another means or expedient kept in reserve in case the current one fails.