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2.
A hat with a rim that extends 360 degrees around the outer perimeter. The easiest and most affordable way to attain the status of pimp. For the ultimate pimp personna, sunglasses should accompany the headgear.
Shawn: Look at that guy over there, he has a bucket hat!
Jamie: Yes! He's so pimp! Oh my god!
Shawn: Don't confuse him with a sheikh.
by Al-Babero August 09, 2005
 
1.
A hat that fits on the head as if it were an upside down bucket. Trendy amongst twenty-somethings who don't quite know where they fit in. May be emblazened with a beer logo.
Hey! Dump the fish heads out of the bucket and put it on your head. You are now wearing a bucket hat!
by liquidcrack January 22, 2003
 
3.
a hat popular with preteen girls in the mid-90's as a result of the television show blossom. The hat was folded up, and often contained a huge sunflower or daisy.
-Mid 90's- Main Street Middle School

Kate: I have got to get one of those bucket hats
Jane: Yeah did you see Blossom last night? Six was wearing the coolest denim one with a pink flower.
Kate: Uhuh, that would look so cool with my gap overalls.
by 90srocked September 04, 2005