(rhetorical question, informal, sarcastic) Used to indicate that the other person's speech has become too obscene or vulgar.

There are consequences to not wearing a condom on one's penis

(Southern US) Do not act in a manner not in keeping with the way you were brought up.

(England, derogatory, offensive) Alternative form of tits out for the lads.

Alternative form of don't count your chickens before they're hatched

(informal) Used to express the speaker's wish that a preceding statement by another speaker were to come true.

Alternative form of trust everybody, but cut the cards

(derogatory) Rhetorical question used to imply that the party addressed is out of touch with reality

(humorous) Used to wish someone luck in an adverse or uncertain situation.

(idiomatic, often humorous) Somewhat sarcastic but usually good-natured advice used to criticise a person's degree of talent (especially in music or other performing arts), implying that he or she could not make a living from it.