Stuffing the Envelope 

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.

Stuffing the Envelope by Yerby August 17, 2006

Seal the Envelope

When hooking up with a really drunk girl and she passes out before you cum, turn her over and blow your load all over her ass crack. When it drys, it will seal her butt cheeks together and she will have to pry them open the next day - hence, sealing the envelope.

Man this girl was so drunk last night, I just had to seal her envelope.

Seal the Envelope by Andrew Schwartz October 1, 2003

sealing the envelope 

the act of splooging in a partners anus and having them fall asleep. The next morning they wake up to the surprise of a glued butt hole

ben not w sealed chloes envelope

sealing the envelope by Anonymous July 16, 2003

stuffed the envelope

when you put the dick AND balls BOTH in the pussy

"Damn, I took Maureen home last night and stuffed the envelope"

stuffed the envelope by echz August 17, 2006

smashing the envelope

To go beyond "pushing the envelope".

NASA will be smashing the envelope by landing a man on Venus

smashing the envelope by Red Caps February 29, 2016

Seal the Envelope

To lick a Vagina.

"I'll Seal the Envelope all Night"

Seal the Envelope by Envelope Sealer March 27, 2010

push the envelope 

to push it to the limit. to see how far you can go with something without getting caught.

Whoa she pushes the envelope in her risque music videos.

push the envelope by Some random dude,somewhere out there in the lonly November 4, 2003