A very, very small penis.
by Pete November 20, 2004
Get the button mushroommug. by skyjack_fixer@yahoo.com February 17, 2008
Get the mushroom breathmug. Keep them in the dark, feed them shit, and when they grow up, cut them off at the roots. (At least this is the way I remember hearing it in 1974.)
by Hot Licks November 1, 2015
Get the mushroom managementmug. by Schurhoff July 16, 2008
Get the mushroom yawnsmug. by long johnston December 27, 2007
Get the mushroom uppercutmug. That God awful haircut for guys in the early 1990's. Easily replacing the infamous Mullet as worst haircut of the decade. Hair grown to temples, parted down the middle and the rest of the head shaved creating a mushroom like appearance.
by jenash1008 January 7, 2011
Get the Mushroom Cutmug. by Nick Couz February 9, 2004
Get the Mushroom Mountainmug.