An extremely moist asshole. May be caused by sweat, other bodily fluids, swamp ass, a shart, a poor wipe job or general uncleanliness.
I need to go Re-wipe. I got a butter badge.
I got her so wet it dribbled down her taint and made a tasty little butter badge.
Tommy broholed me last night and I ended up with a butter badge.
I tried to squeeze on off in class but I ended up with a shart. I had to sit there till class was out with a butter badge.