Someone that's into "extreme" sports such as down hill mtn. biking, BMX, motocross or anything that you can get "rad" with. A flat brimmer will wear a ball cap with a flat brim with Oakley sunglasses and can usually be seen drinking a Monster Energy drink. A flat brimmer will think he or she is better than the rest and loves to pose for photographs.
Did you see that flat brimmer with the Fox jersey acting like a douche to those other riders?
by Surlybob March 16, 2015
Get the Flat Brimmer mug.
A small private school that has it's focus on attempting to be a sports school or a theater/arts school, yet managing to be neither at the same time. It's a place where the rich spoiled K-12 graders go to school for the sole purpose of excluding those who do not wear designer clothes, play sports, or own an iPhone.
My friend goes to Brimmer and May.
by Someone-Who-Knows January 16, 2011
Get the Brimmer and May mug.
A small private school who says they care about their students but the second an issue comes up they don’t do anything.
When there is a social problem at Brimmer and May, all the faculty suddenly leave town
by sadboyhourss June 2, 2020
Get the Brimmer and May mug.
One word used to describe a bowl which is filled to maximal capacity.
Damn bro I snapped that brimmer and now colors are tasting mad nice.
by High Dude Whats Good May 28, 2022
Get the brimmer mug.
The act of filling someone up fully with urine during sex
"Dude last week I was pounding my girl and really had to pee..."

"Oh you sick dog you gave her a brimmer"
by Dunn and Duff June 15, 2021
Get the Brimmer mug.