Top definition
In a gay relationship, a Biv is the one in the relationship who would take the bottom half in bed. Taken from the ROY G BIV acronym used when describing rainbows.
Lorne is totally the Biv in that relationship. He's so fem, you know Skyler rides that nightly.
by Skatchmo January 16, 2009
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Golden Shower Plush

He's warmer than you think.

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2
A shortened name or code word for a vibrator. Used when you do not want anyone to know that you plan to use a vibrator on or with your partner, be it male or female. Derived by taking the first 3 letters, V, I and B an flipping them around.
Hey Marcy, whip out Biv right now and lets ding.
by Chupa March 29, 2005
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Soft and offensive. Just like you.

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3
when people are in the water they say biv if there is a booger in view
hey buddy, you got a biv hanging loose!
by markkie June 01, 2003
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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4
look at the size of that thing he must be a biv.
by xxxbigdaddy June 30, 2016
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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