Monster Muddin

Similar to motor boating, Monster Muddin uses the butt cheeks instead of Breasts.

Dan was disturbed when he walked in to find Jason Monster Muddin his mom who was bent over the couch.

by BobbyShazamm May 9, 2015

Buttface river monster

A really annoying person

Yo that kid is a buttface river monster

by Iamcool3637 August 13, 2019

Monster School

A series I watched as a little kid instead of Skibidi Toilet which is probably better than Monster School currently, but Monster School in 2018 was peak. Now monster school currently is shit and I would rather be forced to watch Italian Brainrot but no one cares

2019: Let’s get addicted to this Monster School animation!
2025: I hate Italian brainrot but at least it is better than inappropriate content NSFW clickbait cringe Monster School 🥀

by 147852369/*-+.0 August 18, 2025

taint monster

when that taint is so nasty you can smell the monster lurking inside

Stacy hadn't bathed in so long I could smell her taint monster

by dirtybitannefrank November 4, 2013

Butthole Monster

When a nigga climbs up your butthole and lives there for a few days

Me: Sorry man I would love to let you eat my poop but I have a butthole monster!

Friend: well, Get that nigga outta your butthole soon

by Willyg6353 September 23, 2020

Mud Monster

when you're having so much fun that you wouldn't even notice if you were covered in shit

"may we all be mud monsters"

by GayPenguin September 17, 2021

Monster cookied

Really really high from marijuana or thc substances. Super stoned or intoxicated from weed.

Damn bro that blunt has me monster cookied.

by Mr fraser August 24, 2021