Green’s Dictionary of Slang

(US prison) a masculine lesbian.

1953

M. Robbins ‘Inside Story of a Girls’ Reformatory’ in Collier’s 30 Oct. 76: A Los Guilucos girl may be a ‘fine chick’ or a ‘vot’. A vot slicks back her hair, wears no lipstick and acts like a boy. She can have an ‘old lady (wife).’.