An offering of assistance. / An indignant response to nosey or rude behavior.

Alternative form of when pigs fly

(idiomatic) Indicating that nothing that could be said would add to or improve the situation.

A request for help.

Alternative form of two can play that game

(idiomatic, colloquial) Emphasises the truth of a statement. / Used other than figuratively or idiomatically: see I, can, tell, you.

(idiomatic, in response to another person) That is very true.

(literally) Offering unlimited food to a diner at a restaurant for a fixed price for as long as he or she continues to eat.

(idiomatic) To postpone a decision or action; to procrastinate.

Alternative form of a cat may look at a king