1 definition by Mahirro

Top Definition
Where one girl lays on top of a another
girl like a bunkbed and then you have sex with one and then the other one
continuesly switching back and forth.
Mario totally bunkbeded those two chicks.
Im totally gonna bunkbeding those chicks.
I gave them the bunkbed treatment.
by Mahirro March 24, 2008
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