Top definition
The short, quick repetive humping of either a person or object.
"Dude, John just Mmcha'ed that table lamp!"

"Eric and Rose did the Mmcha last night."
by Joe June 21, 2004
Get the Mmcha neck gaiter and mug.
Apr 28 Word of the Day
Literally everyone, ever. Including the writer of this definition.
by masokitsune January 17, 2019
Get a stupid people mug for your Uncle Callisto.