up the duff 

To be pregnant.

It was very embarrssing for Kevin when he got Peggy up the duff, but it served him right for trying to save money by using a flak jacket.

up the duff by Dunky Oggins December 7, 2003

Up the duff 

Pregnant, usually unplanned.

She's up the duff and really confused right now.

Up the duff by Tsee October 31, 2006

Up The Duff 

Pregnant (Australian)

Did you hear?! Babs finally has one 'Up The Duff'! They've been trying so hard! I'm sooo happy for her!!!

Up The Duff by talk2me-JCH2 March 15, 2022

Up the duff 

When a woman is pregnant.

Elise is probably up the duff by now!

Up the duff by 7bandittt January 21, 2021

Up the duff 

An expression of great misfortune, expanded from it's original meaning, to be pregnant. The expansion is due to the expression often being the unfortunate case of the pregnancy being untimely and unpredicted.

"When they find all the coke in Mark's desk, he's gonna be sooooo up the duff!"

"Shit, I've got 2 flats and only 5 minutes to get the airport!"
"You are up the duff mate"

Up the duff by Jack Nicholson February 11, 2006

Up the duff 

You’re all idiots it means anal sex

She takes it up the duff, because she loves anal

Up the duff by TheDuffQueen November 5, 2017

Up the duff 

An old Australian Slang term referring to an unplanned pregnancy, first used in 1941 and all the way through to around the 70s. Rarely used now a days.

Person 1: What is happening to her?
Person 2: She's up the duff.

Up the duff by Shen Bapri March 23, 2023