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9.
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 08, 2011
4 7
 
1.
A combination of a bro and a hipster. Has the party-lovin attitude of a bro but the pretentious taste of a hipster.
Broster: Dude, you wanna chill and drink some 40s after the Akron show?
by POWERGOD June 12, 2008
75 34
 
2.
A sibling who is half man/half woman.

A person that physically appears to be both genders.

A word to describe your sister that is a tom-boy
Friend Is that your sister or brother?

Your response That's my broster!!
by yellow_sticky_notes August 14, 2009
36 26
 
3.
a broster is a combination of brother and sister together, instead of using just sibling: not actually used by actual blood related persons and usually used by close friends
" My brosters and I are going to Great America!"
by CpinlovesSaberna June 24, 2011
13 11
 
4.
Individuals with a love of skinny jeans & keg stands. A combination of bro & hipster which emerges during times of winning sports championships. Hipsters & Bros going beyond bromance to bridge the gap between fashion & fraternity.
Brian Wilson became the ultimate broster when he was punished for "having too much awesome on his feet." In an interview with Jim Rome on September 3, he claimed to be a "certified ninja" which he learned in a dream.

"Fear the beard", man that broster is hawt!
by tleeow October 25, 2010
17 15
 
5.
A combination of a bro and a hipster. Has the party-lovin attitude of a bro but the pretentious taste of a hipster.
Broster: Dude, you wanna chill and drink some 40s after the Akron show?
by POWERGOD June 12, 2008
12 11
 
6.
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 06, 2014
0 0
 
7.
A person with traits similar to both a "bro" and a "hipster." Some of the traits they will assume are a defensive attitude, terrible tastes in music, tv, and music. There cigarette of choice is "Newps." Also there appearance will shift between high sports apparel and standard hipster gear.

Note: Beware, depending on their mood brosters can be very violent when called brosters.
Janet, I'm sorry to say this, but your roommate Clarissa is becoming such a broster, we can't hangout with her anymore.
by deadendkid December 05, 2010
11 12