(humorous) To be using a lot of obscure or complicated words.

(colloquial, idiomatic) To have somebody in one's power, or in a compromising or helpless position.

(idiomatic) To have experienced a situation which is the same as or similar to the current situation, especially with a sense of the unpleasantness or tiresomeness of the recurring situation.

To obtain satisfaction for a wrong by committing violence against someone.

Alternative form of as luck would have it

know something backwards, know something inside and out

(informal) Is very sure about; especially when the thing in question is apparently not the case or could be doubted.

(UK, Ireland, colloquial, humorous) To be (extremely) drunk.

Synonym of walls have ears

be carefree