portabella mushroom 

When a guy presses his cock on a mirror and says "I want to be a steak", this is a portabella mushroom

Boink...."ewww....I wanna be a steak"

portabella mushroom by slutties_chix_on_met April 24, 2005

portabella mushroom 

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

portabella mushroom by james howlett March 23, 2004

Portobello mushrooms 

Ooooohh. There is a chemical in them that may or may not cause cancer or cause tumors to grow.

Hym "It's not just portobello mushrooms either. It's other kinds... Remember the thing I said about Terrence McKenna? 👋😝👋 Right again! Captain always right! I've never been wrong! It's astounding! How could a man never be wrong? Even once!? Damn, I am too good. This skull jelly? These thinky thoughts? It's too much. It can't be contained."

Portobello mushrooms by Hym Iam April 9, 2023