very attractive man in bio 152. also the name of the classroom. also a imaginary person. also juul.
BG aka bargos girl is a university of dayton term designed by alcoholic sophie goe. It tends to be used to categorize any girl met at the bar, Bargos, that one does not remember the exact name of. If referred to as a BG, maybe consider the amount of time you spend at the bar... BUT it is a compliment.
Dude i met a sick bg last night, I dont remember her name but if I saw her id know