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A sexual act wherein one partner eats the booty of the other, while simultaneously making motorcycle noises, and on occasion, steering the booty side-to-side through turns.
A: How was your weekend dude?
B: Great! I did the Harley Davasson with my partner.

A: Dude, that's sick!
B: Yeah, man! I was totally like,"Aaaghrrrghhaaaaaugh"!
by Dirty Case May 07, 2016
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