by DaGhetto33 July 09, 2009

If you are 20 years old and have sex with someone who is 40 years old, you have successfully done a double up.
by da9n September 13, 2011

by Tha Bean December 03, 2003

If you buy 40 dollars worth of crack for 20 dollars and sell it for 40 dollars you just pulled a double up.
by Acebee Racine,WI September 24, 2003

