a womans bra :)
1st guy - She's got a great rack, did you grope them?

2nd guy - Yeah I wish!! I cud'nt open her 'over shoulder boulder holders'? Was embarassing! :(
by Sku Kehoe December 18, 2008
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A term used in sexual related jokes which are designed in a manner to insult women. Done while fucking a chick in a rocky area. As the man is about to Skeet, he reaches over his shoulder and picks up a boulder behind him. He then slams the rock down onto the woman as he nuts, killing her in the process.
We were out at Lake Travis over spring break and I met this dirty whore. I got her wasted and was fucking her out on the cliff over the lake. She kept bitching about me taking so long so I gave her the "over-the-shoulder-boulder." Yeah, she shut the fuck up.
by Gangsta Rich June 20, 2006
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