When, in the absence of women to be condescending towards, one of two or more men temporarily assumes the role traditionally occupied by the female in such an exchange. The mansplainee, as it were.
"No, no, no Derek, not at all. What Foucault actually meant by that was that academia itself is the panopticon."

"Of course I knew that John, I've a DPhil from Cambridge after all. Just because you went to Oxford is no ground for manonmansplaining."

"I say, don't get cross. Though you do look so jolly adorable when you're angry."
by Bulgakov November 12, 2022
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The act of explaining man on man sexual intercourse to another person.
Steve's manonmansplaining is making Kyle uncomfortable, and he's probably going to leave soon.
by RolloftheD March 15, 2017
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