When a seated man farts, and the resulting air travels forward up your barse and builds up under your scrotum, creating a bubble, instead of exiting straight out your arse.
Jimmy kept a straight face even though he had a nut bubble, but when it was realeased, it was all over...
by mata September 19, 2006
Get the Nut Bubblemug. A term used to demean someone so stupid and useless, their nuts have become bubbly and withered in an attempt to stop them from passing on their terrible genes
by ronlogic March 31, 2015
Get the bubble nutsmug. by Jerreau Taylor October 1, 2007
Get the bubble nutsmug. by Savage Henry78 April 19, 2013
Get the bubble nutsmug. by mojoe philips March 15, 2003
Get the bubble nutsmug. by daniellebroccoli December 9, 2018
Get the bubble nutmug. 