Green’s Dictionary of Slang

senor-eater n.

[puns on Sp. señorita, miss + señor, mister + SE eater; i.e. one who indulges in oral sex]
(US gay)

1. a gay man who prefers Latin or Hispanic partners.

[US]H. Max Gay (S)language.

2. a Hispanic homosexual.

[US]B. Rodgers Queens’ Vernacular.