A stack of 100 hundred dollar bills, so called because of the mustard yellow band around the stack.
Addict: How much is the blow gonna run me?
Dealer: Gonna be 2 mustard packets, son
Addict: 20k? Aight
by #fuckingstupid June 13, 2017
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When a female takes a bite out of a male's colostomy bag when it is full and lets it pour into her mouth.
He asked me if I wanted to know what a San Antonio Mustard Packet is, and then he ruined my good apron!
by Dan and co. November 23, 2008
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