Shroom Boom

Man grasps the base of his erection, squeezing, causing the tip of his penis to resemble a mushroom.

While watching the Oprah Winfrey show, i had a hankerin' for a Shroom Boom

by Koonjam and TheBigSmooth December 08, 2009

shroom boom

A nuclear explosion or an atomic bomb, which makes a mushroom shaped cloud.

"I saw a documentary about shroom booms on the History channel the other day."

by Orly Wild August 26, 2008

Shroom Boom Kaboom

(See Shroom Boom)

When a Shroom Boom goes wrong resulting in the "Shroom" to bleed and cum.

While Shroom Booming to Oprah, a Shroom Boom Kaboom shortly followed...

by Koonjam and TheBigSmooth December 08, 2009