# Biffin's bridge

> English word · Noun

## Definitions
1. The perineum.

## Etymology
Cassell's Dictionary of Slang suggests it is from biff (“hit”) because one biffs against it during sex.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/biffin-s-bridge