A man who knowingly or unknowingly has an affair with a woman who has a boyfriend or a husband. He is known as "The Other Man".
Man, did I feel bad when I found out she had a boyfriend in New York! I hate feeling like the Other Man!
by Babo Sang Pyo December 04, 2005
Keeping The Other Man Warm is a term to describe the acts of a female whom has been deemed a whore or prostitute.
Zach: Man, Rebecca was the love of my life forever...I can't believe she cheated on me with two guys !
Mike: Well, your not the first. Looks like she's just always Keeping The Other Man Warm when the times needed.
Zach: Damn.
by LyricalFauxpas September 03, 2011