2 definitions by mach4motorboat

when you, being a man, have sex with a woman and a friend of yours, also being a man, has sex with that womans sister.
this is a life-long bond.
Tim fucked Sherry, and Bill fucked Sherry's sister, Jill.
Tim and Bill are weiner step-bros.
high five.
by mach4motorboat October 08, 2010
the act of spotting a 'hanging' high five and running up and slapping that five while announcing 'no five left behind'.
C'mon man, high five.
no.
(out of nowhere): IM ON IT!!!
*smack*
NO FIVE LEFT BEHIND XD
by mach4motorboat August 24, 2010

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