A phrase used on destination tags for some of a ship passengers' baggage, for goods that were to be stored in the ship's hold, rather than kept available in the passenger's cabin, or "Wanted in Stateroom"

(idiomatic, vulgar) To be well-informed concerning a particular subject; to have a capable command of a particular area of expertise.

(US, informal) The United States 1st Infantry Division

(idiomatic, usually humorous) Prepare for a shock! / Used other than figuratively or idiomatically: see hold, onto, hat.

Used other than figuratively or idiomatically: see on, the, other, side, of. / (idiomatic, temporal) After. / (temporal) Older than (a specified age).

present participle of harp on

simple past tense and past participle of harp on

Third-person singular simple present indicative form of harp on

nimble, light-footed / (informal, euphemistic) effeminate, homosexual

(UK, slang) Of a man: to masturbate to orgasm.