on the black 

To work on the black, ie on the blackmarket, ie work illegally, undeclared (to tax authorities).

Jack is working on the black.

on the black by Marcosrkosma November 8, 2017

black on the outside 

A wigga. Wanna "nigga". White boi hu thnks hes black.

White boi: "Yo,sup G"
Other : "Mate, your white, accept it"
White boi: "Mate, im a marmite sandwhich, white on the inside, black on the outside!"
Other : "Twat..."

black on the outside by dannooo May 26, 2008

black man on the can 

Basically, a joking taunt yelled when white students realize the black guy in their dormatory is inhabiting a bathroom stall.

(walks into the bathroom) Black man on the can!

black man on the can by Young Love April 27, 2006

Junk on the back porch 

a term used by unhip father-in-law when trying to use the phrase "Junk in the trunk".

That girl looks good in those jeans, she got "junk on the back porch".

Junk on the back porch by Btown Carter October 31, 2018

On the back 

What teenage Christian girls say when a boy is about to cum while having sex.

Jack: I'm about to cum!
Abby: ON THE BACK!!!!!!!!

On the back by 1a2b12c June 29, 2014

knocking on the back door 

Pressing the tip of one's erect penis against a woman's anus in the hope that she'll agree to anal sex. This technique is futile 99.753% of the time, but persists due to the collective male delusion that women secretly love to be invaded in this way.

Boyfriend: (knocking on the back door)

Girlfriend: How many times do I have to tell you??? Get that thing away from there!!!

knocking on the back door by Carl Pinkerton May 16, 2009

on the back burner 

Postponed or deferred, as in a low-priority task.

It wasn't April 15th yet so I put the taxes on the back burner.

on the back burner by The Aloha Overlord March 22, 2014