Top Definition
When you do a huge line of blow and bang the crap out of the loosest girl on campus with her face straight down into a pillow. Helps if you're looking out the window at some mountains or something.
Dude, I gave Kath a serious pounding last night. Pretty much Colorado Jackhammer.
by D.Brown July 28, 2008
6 Words related to Colorado Jackhammer

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