A Broster is a bro that tries to be a hipster. Generally they have their pants turned up once, or shorts just above the knee. Not too high. They wear hawaiian shirts and bright neon hats. They call themselves hipsters as well. Typically they are in frats. Brosters are not to be confused with hipsters.
Guy 1: That dude is a total hipster!
Guy 2: Nah man, He's fakin. Definitely a bro turned broster.
Guy 1: wow lame
by africacoffee March 7, 2014
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My biological brother, who is now transgender completed, is my broster. He used to be my brother (bro), but now he’s my si(ster); hence, broster. We need more words to describe these relationship changes.
My broster invited me to her home for dinner.
by Raven Roman February 9, 2022
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A brother who acts girly, or sister who's one of the lads !
Could be used for friends, with platonic friendship.

Broster : '' Like a sibling, but even better.''
by Rednosedee October 20, 2009
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1) Short form word describing one's sister-in-law's brother, as it is ordinarily too long and complicated to explain the relation - as the individual is not really family, but is more than a random friend
1) I'm heading out on the town tonight with my broster
by Heeeres Johnny April 8, 2011
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IN some parts of South-East England, the word 'Broster' is used to describe something that has gone seriously wrong. The term was derived from one AS chemistry student who relentlessly dropped glassware by accident throughout the year. As the term became more widely used, to 'Broster something up' or 'brostered' became used for anything that has gone badly wrong, so it was no longer only applicable to broken glassware.
Boy 1 (Drops glass test tube)
Boy 2 - Dayemm fool, you brostered that up big time
by Benenenenenenenenenenenen December 6, 2010
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There is a new wave of hipster, who is down with Operation Ivy but also is down to throw on his favorite basket ball player's jersey (Ironically, Chicago red bulls Micheal Jordan).
They maybe skating (or road biking) to school in khaki's with over sized gauges and cut off "tap out" sleeveless shirt.

Introducing: The Punky Broster (punk bro hipster) coming to your nearest indie coffee shop or shady bridge soon. or you can find him on the resurgence of myspace..
Is he a bro?not sure, he has a Dead Kennedy's shirt. is he punk rock? cant be, he likes sublime..hipster? possibly, that ironic mustache gets me every time.

hes gotta be a Punky Broster,with the spunk of a angry little girl (punky brewster)
by poopersteen ej May 30, 2012
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A Broster is a person of any kind that is a brooo
by broster_123 December 20, 2019
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