# up the duff

> English word · Prep_phrase

## Definitions
1. Pregnant.

## Etymology
Unknown; the OED states that the phrase was originally Australian. Possibly related to in the pudding club (duff is a type of pudding) and thus related to dough.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/up-the-duff