Pennsylvania Briefcase 

Taking one testical in between your pinkie and ring finger, your penis in between your ring and midle finger, and your other testical in between your index and middle finger. Then rubbing on another persons face while they are sleeping.

'Last night I Pennsylvania Briefcased my roommate, he hasn't found out yet.'

Pennsylvania Briefcase by pwetzel January 23, 2010

Where's your briefcase? 

To ask someone how old they are or point out their immaturity.

Dude 1: watch me smash this fly with my face.
Dude 2: Your in high school man grow up.
Dude 1: NEVA!
Dude 2: Where's your briefcase?

Where's your briefcase? by Gnar Cakes October 23, 2008

white briefcase

The award for the highest GPA in a law school class.

Parker's gonna get white briefcase. I can feel it.

white briefcase by [e-mail] February 7, 2009

Tennessee Briefcase

A case of Keystone (or Keystone light) beer.

"hey man, I saw your dad walking to his trailer with a Tennessee Briefcase this morning."

Tennessee Briefcase by Justin Gore July 5, 2012

Buffalo briefcase 

A plastic grocery bag, when used to carry things other than groceries, esp. to and from work.

On Friday, I took a huge pile of TPS reports and a red stapler home from work in a Buffalo briefcase.

Buffalo briefcase by PamsterG August 16, 2014

Musty briefcase

Having sex with a girl and realizing she has mold growing on her vagina.

I was doing this girl this morning and I looked down and seen she had a musty briefcase.

Musty briefcase by Happy fun at work August 12, 2015

dubbo briefcase 

A box of wine

Me: Robbo and I are talking business.
Misso: if you're not business Men, where are ya fucken briefcases?
Me: we're gonna pick up a coupla dubbo briefcases from Dan Murphy's on special sarvo.

dubbo briefcase by Markamello October 26, 2017