Rattle your mudflaps

1.To go take a huge shit.
2.To fart powerfully
3. A threat to violate your booty cheeks

1. Sorry, fellas, I gotta rattle my mudflaps somethin’ fierce. It’s gonna stank.
2. I heard that from across the house! Did you just rattle your mudflaps?

3. Now listen here, I’ll rattle your mudflaps like you’ve never had it before just to show you who’s boss.

by ThunderBoss September 30, 2023

Mudflap

(Muh-d-fl-ap)
Noun
A person or persons who willingly and with pleasure catches all products produced from any and all sexual interactions. Including but not limited to any or all STDs.

That bitch is a jive ass mudflap, she catches it all.

by LullabiiSkies May 1, 2024

Norwegian mudflap

When you attempt to defecate into someone’s mouth in -15 weather and it freezes midway, falling, and slapping the other in the face.

I gave Jonas’s mom a Norwegian mudflap and she’s pretty mad about it still.

by Sassyshrimp November 27, 2021

Mudflaps

The crease where the booty meets the back of the leg.

Did you see Maria’s booty shorts last night? Her mudflaps were clappin’.

by Stretchier August 6, 2022