the juice that flows forth from an excited woman
as john bounced janet on his knee he could detect a slight residue of lap butter seeping through his trouser leg
by stopherer May 11, 2008

5 Words Related to lapbutter

a clear yet cloudy liquid of great viscosity, that is excreated from the lap of a suitably excited woman.
her lapbutter made his knee very difficult to balance on, the floor was also covered.
by stoph1983 April 28, 2007
when a girl is fucking you while she has a yeast infection and smears that goop all over your shit.
yo i ran into some lap butter the other night, it was horrible.
by DonSlappy November 02, 2011

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