a 'tard slap is a term used to describe the motion of slapping one's own upper chest with the side of the opposite hand. it is used when mocking retarded people or when accentuating the fact that one did something retarded. often accompanied by a "huh huh huh" type of fake laugh.

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower