When you sneak into your girlfriends room in the middle of the night, then you drag her out of her bed and into the closet then suck her titties silently without her consent
OMG becky, last night my EX boyfriend snuck into my room and did a Boobie Boy on me!!
Boonie Boys are boys who have buzz cuts with icy blue eyes. They think they are the goat at football but really aren't. Boonie Boys tend to be heartbreakers, but don't worry there's always that one freshman that catches his eye. Boonie boys are "sweet" guys with "great personalities" even though they walk around like they're the king of the world. Boonie boy is the anonymously voted "hot guy" of the school. In short Boonie boys are just boonesters.
Boonie boy: "Boonie Boy is such a handsome guy."
"Boonie Boy is the best at football."
Being a Boonie Boy is defined as ultimate greatness.