What is the meaning of Hooker?

One who, or that which, hooks.

A small fishing boat.

Any antiquated craft.

A player who hooks the ball out of the scrum with his foot.

A batsman or batswoman adept at or fond of playing hook shots.

A crocheter.

Synonym of hook (attention-grabbing element of a creative work)

A thief who uses a pole with a hook on the end to steal goods.

A prostitute.

An imprecise measure of alcoholic drink; a "slug" (of gin), or an overlarge gulp.

Alternative spelling of hookah

Source: wiktionary.org