When a husband has vaginal sex with his wife in order to reproduce. This is only for instances in which the people fucking are a straight married couple who intend to create a child. A reference to the mashed potato like appearance of most newborn babies.
Kyle: hey john what are you planning on doing this weekend?
John: just making mashed potatoes with my sexy wife.
A speccy bellend who eats mashed potatoes on a wednesday morning
When a phallus looks like it's pressed between two panes of glass. Credit to Tommy of Browntown Podcast
"We had intercourse, and that was good to know it wasn't all mashed up, said Heather about Paris."
Nonsensical mixing of words
(similar to mish mash)
combinations of words used to mess with people who take things literally
It's all a bunch of Frish Mash don't take it so literally
A girl whose sole occupation consists of expertly mashing spuds day in and day out, turning the humble tuber into a work of culinary art!
Chef 1: "Who's on the mashed potato baddie duty tonight?"
Chef 2: "I did it yesterday, so it's your turn today!"
Chef 1: "Fair enough, I'll be the mashed potato baddie today and whip up a batch that'll have everyone begging for seconds."
Named after Muncie, Indiana. A Muncie Mashed Potato is where you are doing anal and a girl shits on your dick
“Dude last night I did the Muncie Mashed Potato
Something or someone that is mashed beyond recognition
'Did you see that car? It was mash-micated'
He came back in from the pub totally mash-micated.