Biffon

The region between genitals and arsehole, also known as the perineum. This gets its name as it’s the part of the body that the balls ‘biff-on’ during sex.

The slapping of my balls against the biffon made a lovely rasping sound.

by Μῑνώταυρος January 3, 2023

Slap the biffon

To thrust one’s manly testicular orbs against the tender patch of flesh between a woman’s nether regions - repeatedly, with such force and enthusiasm that it might inspire both awe and minor bruising. Can also refer to cheeky prelude play, in which one’s hand “slaps the biff” to tease, torment, or tantalize.

“I dare say, after three minutes of passionate chaos, big John proceeded to slap the biffon with such vigor that Lady Mildred howled like Michael Jackson in a kids home and nearly dislodged the chaise longue.”

by Burnaldsr. September 20, 2025