mud spud 

a turd, a piece of shit.

I made a dash to the little boys' room to punch out a mud spud.

mud spud by johnnylongprong January 15, 2009

Mud-Spudding 

The sexual act or interest of inserting or harboring potatoes or similiar root crops inside one’s rectal cavity, often for an extended period.

My friend Emily got really into mud-spudding.

My roommate has a mud-spudding kink, so now we never have groceries to make mashed potatoes.

Now that we’ve been dating for a few months, I think we should try mud-spudding

Rhett can’t go on a bike ride today, because he’s mud-spudding.

Mud-Spudding by Thahash March 3, 2019

mudspud 

A derogatory term for people who are part Irish.

"Peter claims to be British Australian but I'm pretty sure he's a mudspud"

mudspud by Rubyscoobiedoo March 26, 2021