The presentation of a mushroom stamp by some asshole in a suit or a bmw.
At the board meeting Mr. Worthington gave that intern major fungal postage.

Dude why did you tell Mr Hamilton I was late yesterday. Watch out for some serious fungal postage.
by Nicholas Breedlove April 18, 2008
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When a guy is doing a girl and pulls out, then jizzes onto a piece of paper from a novel, preferably the book "tai pan" by james clavell, then proceeds to smack the piece of paper on the girls face, imitating the act of putting a postage stamp on a letter.
Matt: I totally postage stamped this girl the other day.
Heidi: that's really sweet

OR, used in the present tense

Matt: shut up bitch or i'll postage stamp you
by Heidimatt May 2, 2005
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It is when you have anal sex with a girl without a condom on and then after you have all the anal juices on your penis and ball sack, you then take it out and stamp (mushroom stamp) right on her forhead but with all the anal juices on her head.
1. Last night yo i gave this girl Jen a mean mexican postage
2. She wanted to have anal last night and i ended up giving her a mexican postage!
by Muffjack2 December 4, 2006
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When a woman uses her lady juices to slap a males face (see fish slap), and then sticks his face to the wall.
Whoa did you see Tina?
She totally postage stamped Todd to the wall!
Well he won't be sipping on her koolaid anytime soon.
Oh No!!!
by The post officer December 31, 2011
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When a guy is doing a girl and pulls out, then jizzes onto a piece of paper from a novel, preferably the book "tai pan" by james clavell, then proceeds to smack the piece of paper on the girls face, imitating the act of putting a postage stamp on a letter.
Matt: I totally postage stamped this girl the other day.
Heidi: that's really sweet

OR, used in the present tense

Matt: shut up bitch or i'll postage stamp you
by Heidimatt May 2, 2005
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When a man is having sexual intercourse with a woman and right before he is about to blow his load, he pulls out and ejaculates all over her stomach. Next, he immediately squats over her stomach and dips his balls in his own semen. He then proceeds to squat over her head where he stamps her forehead with his jiz-dripping testicles.
Cara thoroughly enjoyed the first class postage "male" she received from Bob last night.
by TK1986 June 24, 2011
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a tab of acid
hey try this scottish postage stamp, it will fuck u up real good.
by pookie69 April 22, 2009
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