1. Any hat worn by a pimp, so by definition any hat has the ability to be a pimp hat if it is worn by a pimp.
2. Any hat with yellow and red fur on it.
Person 1: Check out that sweet hat with yellow and red fur on it!!!
Person 2: That my friend, is a pimp hat.
Guy 1: Nice mask, dude
Guy 2: Fosho, I got my Pimp Hat on!
An affirmative exclamation used in only the most illest of situations.
Mike: Hey man I just got the new Finding Nemo for Blu-Ray!
Mark: No Way! Are you fer serious!? Thats fucking pimp-hat!
Johnny liked Susan but Susan liked Scott...because Scott was most definitely pimp-hat.
Howard: Aww man, I just found out I had cancer.
George: Shit dude, that is seriously NOT pimp-hat.