butthole Share definition Flag place for the penis to go when a girl is on her period (see also dadonkadonk) mary was on her period, so i banged her in the butthole butthole by james walsh April 7, 2003 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug