There are two definitions for Mud Bucket.
1) your anus
and/ or
2) someone with a dirty mouth
1) Man, I really don't want to see my doctor today. I know he's gonna finger my Mud Bucket!
2) Would you shut your damn Mud Bucket already? Not all girls like such profanity!
When your ass is exploding non-stop with the most vile, wet and heinous diarrhea.
Braaaaaahhh I got mud bucket. I haven't been able to leave the house. It just keeps coming.
Some sort of smoking paraphernalia which was scraped and filled with resin.
Stoner 1: I'm feinding for some bud bro.
Stoner 2: I understand, I'll scrape my bowl and we'll smoke a quick mud bucket.
Stoner 1 and Stoner 2: Hooray for mud buckets!
An extreeeeeeeeemmmmmmmmly ugly person.
That chick Aaron fucked was a md bucket.
Noun: A non-descript, generic automobile. A car that totally lacks excitement and has no exciting features.
Grandma drives an old mud bucket.
You must be an old pooter if you like that lame-ass mud bucket.
Synonymous with terd cutter, butt, ass, fart tunnel, chocolate factory, starfish, chili ring, buttocks, rump, bottom.
I shouldn't have ate that burrito, I need to empty my mud bucket.