What is Exploding Mushroom?
1.
An action involving one person joining the tips of all of their fingers together, coming up behind an unsuspecting person, and shoving their fingers up their butt while opening the hand and making an ecploding noise.
I'm going to give you an exploding mushroom if you don't cut it out!
See
Random Words:
1.
when you attempt to make an old girlfriend jealous by going out with another girl.
Mark used Erin as decoy booty to piss of his old gir..