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the act of giving or recieving dome on a rollercoaster: stimulating the male reproductive organ by gently (or violently) carressing and surrounding the male genitalia in a female's oral cavity
girl: can i ride the magnum with you?
boss: but i want to go with your friend...
girl: ill give you rollerdome on the way up
boss: alrigghhhht
by cohencock August 10, 2009
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