To glaze someone's buns is to pull your penis out of the anus or vagina before you cum and then ejaculate on their buttcheeks.
Ex 1: I can't wait to glaze Dia's buns tonight
Ex 2: I'm so into Robbie, I want him to glaze my buns
Ex:
Ex 2: I'm so into Robbie, I want him to glaze my buns
Ex:
by Magiclgrl August 9, 2017