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A fucken bra. For someone with big tits, or "Shoulder boulders".
"Hey, that girl just removed her boulder holder and I saw her norks."
by Grant Nicholas March 12, 2004
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Apr 2 Word of the Day
Music so good it could elicit sexual arousal.
The new We Came As Romans albums is chock full of bonerjams.
by lpvitus October 28, 2009
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2
What a female would use to hold up very large breasts, industrial strength.
Janice mentioned that her extra large breasts can only be held up by a boulderholder.

I think Janice's boulderholder is also bulletproof.
by thatguy011071 January 12, 2010
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3
boys or mens cotton briefs underware
John was walking around in his boulder holders today.
by Deep Inurass September 09, 2005
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5
A nickname for a bra, mostly used in rural area and rednecks.
Redneck Girl 1: Do ya like my new boudler holders? Bill said that it makes my boobs look bigger.
Rednack Girl 2: Yeah! My boulder holders er too big.
by y u do this to me November 27, 2018
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