Top definition
To perform the act of anal sex on a woman. To fuck a girl in the ass.
Last night i was mashing up a girl's dinner and i got shit on my dick!
by patyouth711 July 17, 2009
Get a mashing up a girl's dinner mug for your buddy Beatrix.
Apr 28 Word of the Day
Literally everyone, ever. Including the writer of this definition.
by masokitsune January 17, 2019
Get the stupid people neck gaiter and mug.