A daring and courageous stunt that requires the highest of honor and nobility, performing a sea gull is primarily performed in high schools. It requires male ejaculation, most commonly in the high school bathroom, and immediate departure of said bathroom upon completion. With ejaculate in hand, the culprit may either rub the ejaculate on an unsuspecting victim or throw ejaculate into a crowd.
Extra points if the ejaculate is sprayed directly from the phallus.
Person 1: Did you see all those sea gulls by the ocean this morning?
Person 2: I was caught Sea-Gulling someone yesterday.
Person 1: What does that mean?
Person 2: Go to urbandictionary