petrie dish 

Deposting you semen in a girls belly button.

This chick actually let me do the petrie dish to her.

petrie dish by Douglas Wayne September 18, 2006

human petri dish 

a person who is always sick and spreads their germs where ever they are.

Alan is such a human petri dish. He always has a cold and sneezes all over the place.

human petri dish by kajoe October 18, 2008

Soggy Petri Dish 

A game where doctors in a fertility clinic jack off into a petri dish with an egg in it. The last one to shoot their load has to say that they are the dad.

Yeh, my mom told me last night that I was conceived in a game of soggy petri dish and my dad is some asshole called Dr. Carl Schiezner.

Soggy Petri Dish by SaxMan16 April 13, 2010

Walking Petri Dish 

Someone who has had sex with so many people that they are virtually guaranteed to have multiple STD's. Similar to a walking STD.

Me: "Pat and John are walking petri dishes."

Jane: "I know, they're total male sluts."

Walking Petri Dish by PennieGirl August 11, 2005

Walking Petri Dish 

A girl who has sex with everyone

See that girl overthere she's a walking petri dish

Walking Petri Dish by chris goggil April 28, 2007

petri dish

An adjective used to describe a promiscuous person.

That bitch is a petri dish. Better come strapped, if ya know what I mean.

petri dish by GNox August 5, 2007

Petri-Dish 

When a woman's been with so many partners you dont know what she's got.

No one wants your woman- she's a Petri-Dish!!

Petri-Dish by RipYaANewOne October 3, 2016