Twilight reference: Bella Swan's nickname for Edward Cullen's dick. It refers to a penis that is cold, hard and most importantly, sparkly.
Edward Cullen: Need some wood, baby?
Bella Swan: You mean rock?
Edward: Need some rock, baby?
Bella: Hells yeah. Ohai there sparklepeen!!1!
by OMGDAZZLED~ March 1, 2009
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