When the penis becomes entrapped in the zipper of the pants during or after a sexual act because the wearer stuck their shaft through this ragged metal-teethed slot instead of fully removing this dangerous piece of clothing
"I was fucking this girl in my Honda, and my dick got caught in a Penis Fly Trap half way through."
by FireMuncher May 9, 2018
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The penis fly trap is one of the worst things to befall on modern man. The penis fly trap is a defense mechanism used by women who are either frigid or just cruel. During the build up to the long awaited intercourse to escape the blue balls you've been afflictive with. Seconds before insertion The female states, 'actually I don't feel like it.' Now you have a rock hard catch of the day between your legs , With no where to go it just hangs there. trapped and dishearten it returns to the depths of whence it came. Ladies and gentleman I give you The Penis fly trap!
Guy 1: Dude I'm going to have to break up with her .

Guy 2: why, she giving you blue balls again?

Guy 1: worse, she used the penis fly trap!

Guy 2: dude she's like starlin dump her
by Benbo swaggings May 7, 2016
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huge vagina, piercings, black hair, dick munch, did I mention you could fly an airplane through her vagina?
Ew, look at that danknasty Penis Fly Trap that just walked by.
by Team Fantastic. June 4, 2010
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A very tight vagina that just might leave marks on your penis.
I'm limping because of my girlfriend's Penis Fly Trap. I really should have either used more lube or just said no.
by Clive Hyde July 26, 2014
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A painful occurance that takes place when one's penis gets caught in one's fly.

(Most common when going "commando" and/or when "pissing" standing up).
Two Pissing guys:

Guy 1: GAAAAHHH!

Guy 2: What happened, man?

Guy 1: Penis Fly Trap!

Guy 2: Haha, that blows for you!

...

Guy 2: GAAAHH!
by timeoddplace July 16, 2011
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The act when a woman wraps her legs around the man so he can't escape while doing missionary.
Damn our sex was so god that she hit me with the "penis fly trap".
by buce20 September 21, 2023
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Quite possibly the best slang word for ones vagina.
I was talking to him and all of a sudden he asked to see my penis fly trap!
by drugsmuggler June 3, 2020
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