Brown trousers 

when you are so scared you might shit your pants.

ah shit that guys gonna shiv ya alice. its brown trousers time.

Brown trousers by dougy May 24, 2004

Brown trousers 

Usually worn by politics and economics teachers with exceptionally large behinds. Upon prenounciation, emphasis should be placed on the word "BROWN".

Right example: :)
Theador: Here comes our politics teacher
Jeremy: Check out those BROWN trousers

Wrong Example: >:0
Theador: Here comes our politics teacher
Penis: Check OUT those brown trousers

Brown trousers by Snekaing Chimp May 11, 2008

Billy Brown Trousers 

A phrase used in conjunction with sporting failure under immense pressure, as if someone soiled themselves after being put to the test and failing miserably. It has originated from the man whom wore brown trousers for over 20 years of his life in Ballymena county Antrim. Needless to say he suffered from being under pressure during pool billiard games.

Person A: The pressure really affected him on that last shot.
Person B: No doubt, he did a Billy Brown Trousers.

Billy Brown Trousers by Scrooty mcboogerballs August 28, 2010

Brown-Trousering

Needing to take a dump while making a round trip between two towns and keeping it together until you sneeze right as you get home which results in you Brown-Trousering yourself.

" Dude I made the colossal mistake of having a big ole curry last night while drinking a box of beer. Nina was around and I was totally going to get my leg over until I went to the fridge I farted and started brown-trousering.

Brown-Trousering by CaliAngel May 15, 2018

The Yung Buddah Brown Trouser Shower Diversion 

When a person (usually a teenager) shits their pants in a watery and explosive manner to escape a drug test appointed by his or her parent or legal guardian changing the color of said person's pants and floor causing a literal shit storm

When my parents pulled out that drug test I knew I was fucked and had no choice but to use The Yung Buddah Brown Trouser Shower Diversion

The Yung Buddah Brown Trouser Shower Diversion by fangirlshitstank May 23, 2020

A 'brown trouser moment' 

similar to 'shit a brick', when something so scary happens or when something makes you really nervous

the cops dog kept sniffing our bag in the airport, that was such a 'brown trouser moment'

A 'brown trouser moment' by Shadzame September 23, 2009

brown trouser snake 

turd, poop, crap, shit

A brown trouser snake is playing peek a boo with my asshole.

brown trouser snake by themiss2001 March 13, 2011