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The act of a gay couple holding each other’s penises whilst covered in a sticky substance of their choosing.
Brad: Yo, you and John did a pierro?
Matt: Yea, we used marshmallow fluff though. Wasn’t as good as peanut butter.
pierro by jojoman235 November 18, 2017
Related Words
Pierro is a psychopath en the only thing

What is important voor him is loyalty

If you crossed him better watch out
Don’t snitch or i gonna pierro you
Pierro by Kananstark November 22, 2021

nick pierro 

This guy has a great dick get plenty of girls and has good friends that guy is fucking awesome
Girl 1: OMG i was with nick pierro yesterday and he gave me great dick then a russian flashbang
Girl 2: fuckin lucky bitchhh
nick pierro by Buzzlightquer July 13, 2017

del pierro 

A continuation on the 'DP' acronym for the smut movie regular act of double penetration.
Dave : 'You've seen Piledriving Miss Daisy, what's it like?'

Clive : 'Normal, gob, moota, Del Pierro, fairly standard'
del pierro by T Boor July 1, 2008

pierre gasly effect

valterri bottas has a backwards cap on, wow he has succumbed to the pierre gasly effect
pierre gasly effect by isaaaaaaaaaa November 27, 2021

The Pierre effect 

The Pierre effect is named after f1 driver Pierre Gasly. He wears his hat backwards most if not all the time. It’s used when other drivers also wear their hats backwards and look mighty fine.
What does Charles with the Pierre effect mean.
It means he’s wearing his hat backwards
The Pierre effect by Kalinski November 29, 2021