Meaning of ASS in English
~ 1 [ as ]
1》 an animal of the horse family which is smaller than a horse and has longer ears and a braying call. [ Equus africanus (Africa) and E. hemionus (Asia).]
↘(in general use) a donkey.
2》 informal a foolish or stupid person.
OE ~a , from a Celtic word related to Welsh asyn , Breton azen , based on L. asinus .
~ 2 [ α :s , as ]
■ noun N. Amer. vulgar slang a person's buttocks or anus.
var. of arse .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004