punisher skull
a Punisher skull found on a mans car or clothing indicates he is a douchebag with a small penis (not to be confused with a douchebag who has a large penis.) Comes from the Marvel "Punisher" comic book series but has since been used by various wannabe macho men. Also see "lifted truck"
"That man has a small penis. How can I tell? He's wearing a Punisher skull shirt."