hat boy stands for a male in you're class who you don't know the name of yet, but know that he has a SLIGHT obsession with hats! :)
by sammi123 February 10, 2010

A frat boy (or wannabe frat boy) who wears a hat with the logo of his favorite college team, or his friends' favorite college team. Usually seen in large groups at social gatherings acting stupid and drinking too much.
by Kell Hell October 21, 2006

The bitmoji cow boy hat means a lot to a lot of people and if anyone tells you to take it off just take it off or you’ll have bad luck for years.
by Happysow May 17, 2021

by Hatsboi February 24, 2020
