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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boys or mens cotton briefs underware
John was walking around in his boulder holders today.
by Deep Inurass September 9, 2005
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"Mary was walking around the mall with her boulder holder hanging right out of her shirt."
by Browneyedgirl413 July 4, 2013
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A term for a rather large bra. The boobs are represented as the boulder and the over the shoulder holder represents the bra itself.
I was checkin out this chick at the mall. O man she was wearing this tank top and you could see her over the shoulder boulder holder. O man she had huge knockers. I wanted to jizz all over her face.
by B$ April 2, 2005
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