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Make your penis hard and put jam or jelly on your stomach.

When a fly lands on your stomach to eat the jam, pull your penis back and let it go so it springs back, smacking into your stomach, and thus killing the fly.

Yes, it is completely wrong in every sense of the word!
There was a fly infestation over at Jones' place.

I saved him some money on an exterminator by giving it the old Penis Flytrap.

I feel sick now!
by Klobersaurus August 15, 2010
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Apr 15 Word of the Day
to take an unfortunate loss and turn of events.
"last night took an L, but tonight I bounce back" - Big Sean (2017)
via giphy
by urbansammy January 20, 2017
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An accidental situation that occurs when you have your fly unzipped and don't notice that you barely have the head of your penis sticking out through your pants and then you very quickly zip up your fly without even noticing. OUCH!!
Damn, while Mark was in the restroom with us after a quick piss and while we were hurrying to see the new Star Wars movie, he was so rushed that he didn't realize his dick was still sticking out a bit as he hurriedly zipped up his barn door, and thus he gave himself a nasty and painful penis flytrap! He was screaming in pain for a while, missing the movie's first 20 minutes and had to watch the rest of the movie while his dick was feeling swollen after the incident!

In conclusion, don't forget to put it completely AWAY first before zipping up if you are in a hurry!

Mark H. Bringing nice new slang terms to UD since February 2004.
by Mark H May 14, 2005
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The event in which a man is done peeing into a urinal, then zips the tip of his penis up in his zipper, causing an excrutiating pinching pain that results in loud sreaming and cursing.

The name derives from the penis getting trapped in the fly. Hence the name penis fly trap.
(two guys standing by seperate urinals, finishing up)


Man 2:WHAT?!?!


Man 2:Ouch...
by iforgetmynamealot May 19, 2010
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When a girls between your legs giving head and you're about to cum, forcefully squeeze your legs together trapping her head between your thighs and forcing her to take your jizz.
lars: "damn, that girl gave you a dirty look"
mitch: "yeah, i gave her the penis fly trap."
by Fred the Philosopher of Flavor January 04, 2008
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A female who tends to sleep with many men, and who may have one or more sexual diseases...
"Hey guys, did you hear? Burt slept with The Penis Fly Trap! He certainly has been where every man has been before!"
by Mogz October 12, 2005
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A vagina that was shaved several days previous to intercourse and therefore has short, sharp, stubby pubic hairs. Before her vagina is wet enough to enter, the male attempts to stick his penis in and the vagina lips cave in around the cap/shaft of the penis, thus scratching the cap/shaft of the penis with the short, sharp, stubby pubes. The situation resembles that of a venis flytrap closing around its prey. Hysterical? Me thinks so.
"Hey do you remember Mandy from barnes and noble? yeah man I got her to come over last night, but I didn't get her warmed up enough and that biddie's snatch penis flytrapped me."

"Dude, that's no good. Ya gotta put a little work in before putting it in. You're better than that."

<sigh> "I know man, I know."
by BdazzL March 19, 2007
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