muck up day

muck up day is usually when year 12s do a prank similar to senior pranks. mostly used and done in australian public schools

P1 : What are you doing for muck up day?
P2 : tying a year 7 to a pole.

by eedeen November 6, 2021

mucked up cunt

when a woman's vagina and rectum fuse,then ulcerate, causing feces to come out of the vagina.

i would not want to be a mucked up cunt, or go down on one either.

by ol upchuck November 30, 2020

Crate Muck-up

The time period when Valve released a TF2 update with spaghetti code that forced the crate series to always drop unusuals. This resulted in the unusual market crashing with absolutely no survivors left.

The Crate Muck-up was one of the worst disasters in TF2 history.

by FL4ym3Burn July 26, 2019

Muck up day

A day where usually year 12s do things that are not allowed e.g tying a year 7 to a pole ect. mostly done in Australia.

Year 12 N1 : What are you doin for Muck Up day?
Year 12 N2 : I’m starting a water balloon fight on the oval

by eedeen November 11, 2021