Phat boy
noun; a fat piece of shit that thinks he knows how to play percusion (usually from mexico)
hey dude, look. Not is that guy acting like a douche bag but he is also being a Phat boy
PHAT BOI
A dude from a Galveston Island Texas that is cool funny damn right ballin and is ready to do anything no matter what the consequences.
Hey PHAT BOI what you doing tonight?
Phat Boi
A big man who is funny and a great singer. He always makes u laugh unless u r cleaning. He may be big but he at least keeps a house clean and he can cook really good.
Damn Phat Boi is the best dude u can meet.
Phat boi
A fat boi
Phat boi: Hi
Person: Lol phat boi
Person: Lol phat boi