back-door man

In real, traceable use. Part of the curated seed collection; community review is coming.

Meaning · English

A man who engages in an intimate relationship with a woman who is already in a committed marriage or relationship, without the knowledge of her partner.

Register: derogatory, humorous, slang

Where it’s used: Used American English
Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “back-door man” mean?

A man who engages in an intimate relationship with a woman who is already in a committed marriage or relationship, without the knowledge of her partner.

Is “back-door man” formal or informal?

back-door man is generally derogatory, humorous, slang.