Green’s Dictionary of Slang

a woman who is equally happy with vaginal and anal pentration.

1885

R. Burton Arabian Nights V 161: These it is that liken girls to boys, of their exceeding profligacy and ungraciousness and inclination to follow the fiend and own lusts, so that they say, ‘She is apt for two tricks’ [...] [footnote] Meaning before and behind, a Moslemah ‘Bet Belmanno’.