Top definition
When someone seems to enjoy explaining things so much and explain waaaaay more than they need to, you swear they cum while doing it.
Did you see Joe's eyes light up when the teacher asked him what he thought about Beowulf?

Yeah, he was mastersplaining why that book is awesome for like 5 minutes.
by Adambom42 May 30, 2018
Get the mug
Get a mastersplaining mug for your cat G√ľnter.