Attractive and gratifying. A synonym for "cool." The most inefficient synonym for "cool," that is. I have never heard anyone use this word, besides in a cartoon where the protagonist uses this word to compliment someone. This someone so happens to be a fat dude. The show then emphasizes how far this kid has shoved his foot into his larynx. Using this word unironically is not a good idea, as its homonym is not the most flattering adjective. No offense to fat people, though. They're usually pretty cool.
Johnny Test: You're looking super PHAT today!
Cool Clerk: WTF dude? Rude!
Johnny Test: You know, PHat, with a "PH!"
Cool Clerk: That's totally lame bro.
by Derineka February 20, 2021
phat with a "ph" means thick
by kidlion8 October 24, 2016
A word used by white suburban kids who think they are gangster to describe something "cool"/stupid and used to describe how "gangsta"/gaudy their wigger friend's ricer is.

Me: No. It is insanely gaudy.
by Blahb April 15, 2005
not overweight but thicc.
B) did you see Kennedys phat booty
A) Yes she is thicc and skinny at the same time!
by 101.zoey_ April 23, 2020
A word that never should have been invented in the first place.
Man, that's "phat"!
by Johntoo August 20, 2009