A little known act performed in the later Middle Ages. Wandering minstrels, usually those with few talents, would entertain onlookers by "sucking a fuck" which involved a wooden rod and a live goose. The performer would take the rod and try to gently slide it into the anal cavity of the goose without frightening it and causing it to fly away.
"Gather around as I attempt to suck a fuck."
"The entertainer wasn't very good. He tried to suck a fuck and failed miserably and his goose refused to even come near him."
"The goose looked quite content perched on top of the stick. Then we all realized the the performer wasn't using a live goose, it had been dead for hours. The man would never suck a fuck again."