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!!!!!!!!

by 1a2b12c June 29, 2014

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.

by The Aloha Overlord March 22, 2014

On the back wheel

Riding a "bike" in hashbourne

"Aisling kenny on the back wheel say mup "
"MUP vroom vroom"

by Asho69xoxo December 20, 2017

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".

by Btown Carter October 31, 2018

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!!!

by Carl Pinkerton May 16, 2009

Put on the back burner

What guys or girls do to people they're undecided about by stringing them along making occasional contact but not consistently acting interested.

I knew I was put on the back burner when he asked me out for the following weekend, then seemed confused when I called a few days later to confirm.

by Sarcastic Cynic August 19, 2011

knocking on the back door

When a man feigns an attempt at anal penetration in order to startle his partner.

Woman: I told you I don't do that!

Man: Don't worry, I'm just knocking on the back door.

by wiggy_G November 20, 2009