(informal, transitive) To soil or dirty; to mess up; to clog.

(slang) A mistake or problem.

(slang) To make a mistake. / (transitive, slang) To introduce problems to or damage through incompetence.

(transitive, idiomatic) To pay (usually a bill, debt or due).

a regime of gentle exercise undertaken before some strenuous exercise or sport

present participle of warm up

(before the noun, idiomatic) Current; recent; the latest. / (idiomatic) Informed about the latest news or developments; abreast.

Alternative form of fess up

(intransitive, colloquial) To confess to something; to admit something.

(transitive) To make a mess of; to untidy, disorder, soil, or muss. / (transitive) To cause a problem with; to introduce an error or mistake in; to make muddled or confused; spoil; ruin.