Green’s Dictionary of Slang

1. (US tramp) a vagrant who frequents charitable missions, looking for handouts.

1935

E. Anderson Hungry Men 10: Observe the holy nose divers there.

2. (US black) a cunnilinctor.

1964

R. Abrahams Deep Down In The Jungle 214: He was wondering what a sleeve job could possibly be [...] He called old dirty slim and asked him, old dirty slim was what you would call a bushwacker, a nose diver, a canyon yodler, well in other words a cocksucker, or just say that he ate pussy. He was also a puck lover, and a whore mongler, in other words he was just plain dirty Slim to everyone.