If you buy 40 dollars worth of crack for 20 dollars and sell it for 40 dollars you just pulled a double up.
Ay main let me get a double up up off you.
by Acebee Racine,WI September 24, 2003
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"Double-up, the Elroy comin'."
by Tha Bean December 4, 2003
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To put two people on something, i.e. double team

To double something, i.e. drugs
2) Yo double me up on this weed here
by pwnz0r September 19, 2003
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To do a threesome; menage-a-trois; 3P
If you ever got two chicks both with dizzy legs bring 'em both and do a double up on 'em, dawg!

Kiss me; now kiss her; we do the double up like that!
by westsan July 28, 2009
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In sleepovers, it's the act of having to sleep next to someone of the same gender in the same bed.

The term doubling up is commonly used to make the one using the word seem less of a homosexual, as saying "Let's sleep togeether." Can spur awkwardness.
We need to double up, tonight. Just make sure we don't look eachother in the eyes.
by Bill  June 12, 2011
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