The sexual manuveur to take one's cock and balls and put or stuff them both into the woman's vagina.
Man, the new bitch at the office is so loose I ended up stuffing the envelope last night.
by Yerby August 17, 2006
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when you put the dick AND balls BOTH in the pussy
"Damn, I took Maureen home last night and stuffed the envelope"
by echz August 17, 2006
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