Portable and durable container with handles, which enjoys near-ubiquitous popularity in the county of Yorkshire. An affordable means of transporting documents and valuables, with a typically Northern disregard for formality and style.

A See-Through Plastic Morrisons Bag.
Steven, why are these quarterly reports soaked in mud? This is totally unacceptable!

- Sorry Chancellor, our lass must a' used me Yorkshire Briefcase to carry 'er walking boots
by LiquidLiam February 23, 2012
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A vernacular saying made popular during the 2010's to describe an unimportant blow hard that wears a suit in an effort to create gravitas.
I don't know who would ever take Joe Walsh seriously? Everyone knows he's just a fart in a briefcase.
by TeaPartea February 4, 2013
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A person, who is socially awkward, posh and arrives on there first day of a new school with a briefcase or they own a briefcase.
Bully: Briefcase Wanker
Briefcase Wanker: Ah yes, the bully of the school, your next jokes about me losing my virginity, well I lost it last night, ask your sister.
Bully: I don't have a sister
Briefcase Wanker: You will in Nine Months.
by Mr.J.Nixon September 13, 2022
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A fart that has been concealed within a briefcase for later usage.

When one unleashes the fart from its briefcase, the fart yells "FART" then smells unbearably horrible to unsuspecting victims (most frequently used on airplanes) ((often used by terrorists...pilots never see that shit coming)).




and that's what she said.
"You and me go together like two farts in a briefcase! : "

"Random Airplane Passenger: WHAT IS THAT AWFUL SMELL?!
Man With Briefcase: THAT'S MY BRIEFCASE FART!
Random Airplane Passenger: Wow, that's nifty! I needta get me one of them that there briefcase farts! I can use it on my wife when she won't sex me up!"
by Portishead && Tallywag! July 12, 2008
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A glasgow briefcase is another name for a plastic bag. Cos they can't afford to buy leather goods so they carry their shit in a plastic bag.
Look at his glasgow briefcase, it's one of those designer Asda ones
by pink chris August 9, 2004
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That horrible moment, when you hold your fart, until you reach the bathroom, and forget to drop your pants, before letting loose. The smell then proceeds to follow the person out of the room, as if it their pants was a briefcase, hence the name.
Girl: Oh god, what's that stink?
Guy: 'Oh shit, I musta Dutch Briefcased in the bathroom...'
by PhoenixGamer13 December 7, 2011
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