When you having sex doggy style and when your about to cum, you pull out and jizz in her butt crack and then smash her butt cheeks together.
Tom and jane where having sex when tom gave jane a sticky envelope
by jebusmckrackin July 10, 2014
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a Sticky envelope is when you can't be fucked to lick the envelope to send it so u squeeze out a little bit on nut and seal ur envelope with ur own fucking seman.
person 1: Bruh that's one sticky envelope person 2: yeah idk why tbh (smirks)
by lolcarson March 12, 2019
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