When a World War 2 Australian pilot shits himself, ejecting fecal matter and animal semen into the cockpit of his plane, while being chased down by a Japanese pilot in the skies above New Guinea after having sex with a wallaby. This action turns the entire canopy of his fighter brown in color.
Rei Sen 1 to Rei Sen 2, that limey yellow toothed criminal just shat his pants! I got a Brown Aussie at 1 o'clock!
by Rodney_Sexfart November 27, 2013
Get the Brown Aussiemug. Brown Musket describes a sexual act which typically involves at least one male. It occurs when an individual takes a dab of excrement onto their finger and then inserts it into the pee-hole of an erect partner. The pinky is most often used, but more advanced 'Brown Muskateers' often graduate to the use of the larger digits when a willing partner is able to withstand what is usually considered an intensely painful experience. The source of the fecal matter used is irrelevant but most often belongs to one of the involved participants. Extra points are earned the heavier a musket is loaded. Common side effects include urinary tract infections, as well as pissing shit.
Mary was mildly disgusted, but not altogether surprised when Ian's dick tasted like shit after she delicately performed her first Brown Musket on him.
by slithering succotash August 18, 2016
Get the Brown Musketmug. by nialls princess sabrina July 10, 2016
Get the Down for the brownmug. by Trader1933 January 15, 2017
Get the brown tunamug. the act of spreading you ass cheeks, flexing the anus muscle, shouting, "i am the brown cyclops, I see all!"
by Teabag man June 11, 2008
Get the the brown cyclopsmug. a brown mountain is when you shit on someones head and sculpt their hair into a mountain with the shit
by jarik algrich May 24, 2009
Get the brown mountainmug. "I was on my way to work and some dope in a semi almost ran me over. I thought I was going to brown the runway"
by @WeMoveTheMasses October 20, 2012
Get the Brown the Runwaymug.