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2.
A violent orgy or sexual party
John So I walked in and my roommate was having a Whomping Willow on my bed!
Zac Better wash your sheets!
by Crider816 July 17, 2011
 
1.
The god damn tree in harry potter that tends to eat anything that comes within a 2 mile radius of it.
Look a car! I think I'll eat it!!1
by Brett April 26, 2005