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.
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.
Steps: 1. Get a group of 4-6 guys on the dancefloor.
2. Gradually spread out into a small oval shape.
3. Wait for a group of 4-6 girls to walk into the middle of the small oval.
4. Immediately close in the oval around them and start grinding.
5. Enjoy.
The other night at the club, we desperately were trying to pick up some chicks. We huddled up and began to spread out. Within 5 minutes, 4 girls walked between us and we closed in around them. One of the girls exclaimed "I think we were just caught in a PENIS FLY TRAP!....and I am loving it!!"
A description of a toilet that has a lid that won't allow you to stand up and urinate because the lid keeps falling down, resulting in mess, annoyance, and possible dry-cleaning bills.