An expression of exasperation.

(US, idiomatic) For reasons unknown and not worth speculating on.

(idiomatic) Intensely, vigorously, with as much effort as one can supply.

(idiomatic) Used to form interjections expressing exasperation.

Used to evoke the situation where an aggressor is being appeased for the sake of delaying a (possibly inevitable) war / Used to evoke the idea of false political promises and false expectations.

Alternative form of for the hell of it

Except, except for, not counting; were it not for. / despite; in spite of

(law) Pertaining to a test of causation whereby an agent or action is considered to have caused an event (and therefore to be responsible and/or liable for said event) if, had said agent or action not existed, the event would not have taken place.

(idiomatic, US) To repeatedly fail in one's gambles or efforts.

In commercial transactions, the quality of goods and services increases as the prices increase, i.e., the more one pays, the better the merchandise.