The finishing of a building's roof, often accompanied by a special ceremony.

(idiomatic) To eat heartily. / (idiomatic) To perform at a high level in one's official role.

(informal) An opportunity to escape from an undesirable situation, such as a legal loophole.

Used other than figuratively or idiomatically: see on, plate. / (of one or more matters of concern) To be dealt with or handled.

A scientific generalization about nature based upon empirical observation. / A natural law (any of a number of doctrines in moral, political and legal theory)

It is sometimes necessary to cooperate with a person one does not like or agree with, in order to combat a common threat.

(idiomatic, Canada) To reassess the common sense of one's behaviour, ideas, etc.

(transitive) To create as a by-product or a secondary derived work.

plural of old chap

Alternative form of take the wind out of someone's sails