when you go to have a wank
as in, hes goin to aash his bishop
po bobby bobler Октобар 16, 2003
To masturbate the male penis. A reference to the similarity of an erect penis to the shape of a classic Bishop chess piece.
Bash the Bishop: "I caught my little brother bashing his Bishop for the first time yesterday"
po snakehands Јул 2, 2010