(idiomatic) To change one's opinion, or be uneasy about a previous decision.

Used other than figuratively or idiomatically: see have, a, nice, day. / (US, Canada, rather formal). en

(idiomatic, Britain) To be frightened or disturbed.

(idiomatic, of a person) To obtain the circumstances one wishes for; to do what one wishes to do, or to have others do what one wishes them to do. / (idiomatic) To achieve a desired or natural result.

(colloquial) Any of several additional, unmentioned things

Alternative spelling of what have you.

(idiomatic) To enjoy oneself.

(idiomatic) To lack support, as in an argument, debate, or negotiation.

(idiomatic) To enjoy oneself greatly.

Used other than figuratively or idiomatically: see have, one's, name, on. / To be reserved for someone / To be (in) one's destiny.