in the racket

euphemistic slang

(slang, euphemistic) Synonym of on the game (“working as a prostitute”)

Japanese Meaning

（俗語・婉曲表現）売春婦として働くこと

She said she was just passing through town, but everyone knew she was in the racket.

彼女はただ町を通り過ぎているだけだと言っていたが、みんな彼女が売春をしていることを知っていた。

Sense（1）

(slang, euphemistic) Synonym of on the game (“working as a prostitute”)

Their answer is that they are "put wise" by other girls already in the racket.