a skid mark in your pants. usually common on those who wear no underwear. a greasy fart that squirts into the pants.
After a greasy fart, Otto rushed to the bathroom, pulled down his pants, and to his surprise had fouled himself. The distinct markings of a trouser spider could be seen in the seat of his britches.
by malibulivin February 26, 2012
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James: That pretentious cocksucker Javier keeps CCing Richard and Martha on stupid fucking emails that don't even pertain to them; just to make it seem like he's actually working.
Ryan: Yeah, that fucking trouser sniffer.
Ryan: Yeah, that fucking trouser sniffer.
by Butts505 August 29, 2015
The human male organ of thought, primarily used for urination and procreation, believed to have over ruling power of the actual brain when encountering other persons of sexual interest.
by Trouser Brains March 03, 2017
Another way of describing when your penis becomes erect and pushes upward against the crotch of your pants, also known as pitching a tent, standing at attention, morning wood and rising son
by Metallicajunkie October 24, 2018
by Borris Beck February 20, 2015
The unfortunate and unintended phenomenon whereby an attempted fart and dart is performed too rapidly, resulting in the perpetrator being followed by his or her own brown cloud around a public place, leaving little or no doubt as to the initial deliverer of said methane.
Jesus Mother of Christ, that trouser trailer could only have come from the bloke over the other side of the shop! If he'd timed it a split second later he'd have pulled off a classic fart and dart!
by Network Synergies Mgmt September 27, 2011