Dupper 

Term for a person of lower intelligence or learning difficulties esp. in Lancaster, England.

"Look at that fella there, he's a right dupper!"

Dupper by DrGreyhound August 19, 2008

Dupper 

The meal in between a dinner and a Supper.

Mom: Hey what would you like for Dupper Jimmy?

Jimmy: Some cracked corn MA.

Dupper by Thecrunchynugget January 23, 2010

Dupper 

An extremely ugly, stuip female.

The also legendary Laura Mcloughin
Laura is a dupper

Dupper by Chrissy B April 24, 2008

Dupper 

MP of the Democratic Unionist Party, or one of their supporters

We can’t put any new laws into place without the duppers coming back

Dupper by sleassy October 19, 2022

Dupper 

A meal combining DINNER and SUPPER

Although it was very late I was ravenous, so I cooked myself a very hearty DUPPER.

Dupper by Churchorganist July 10, 2023

dupper snupe 

a very fancy way to fart, that attracts your inner gold

Luckily my dupper snupe was not detected.

dupper snupe by The Dupper March 2, 2016

Rupper Dupper Der 

What retarded people say when they finish a sentence. They usually say it underneath their breath.

Retarded Teacher ~ You Boys GET TO CLASS!!! Rupper Dupper Der...

Rupper Dupper Der by Mad Dog Harrison October 5, 2008