What is Portabella Mushroom?
1.
When a guy presses his cock on a mirror and says "I want to be a steak", this is a portabella mushroom
Boink...."e...I wanna be a steak"
2.
the foreskin of a penis flarign out wide to make the penis resemble a mushroom
that chick made me flare up like a portabella mushroom all day
Random Words:
1.
1. Basically a pervert but it's a more specific kind of pervert.
2. Best way to describe it is that they are very perverted and do..