(euphemistic) Prostitution.

plural of oldie

(informal) Something or someone old. / (informal) A song or record from a previous era. / (informal, in the plural) The genre of music composed of popular music from previous eras.

(colloquial) Someone who is old. / (nautical) A midshipman of four years' standing; a master's mate.

somewhat old

plural of golden oldie

(colloquial) Something, especially a record, that was very popular in a former era.

Synonym of Oldenburger (“breed of horse”)

Alternative form of old as the hills

(Internet, rare) An old-timer, a person with experience.