noun
1.
an alert enterprising individual
he's a hustler, eager to get ahead in the world
Synonyms: dynamo, go-getter, live wire, peeler, rustler, self-starter
Related Word: humdinger, hummer; new broom; doer, powerhouse
Idioms: busy bee
Contrasted words: dawdler, idler; slow coach, slowpoke, stick-in-the-mud
2.
Synonyms: prostitute , bawd, call girl, drab, harlot, ||hooker, moll, streetwalker, ||tomato, whore