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

muck her clam

To eat her box

Max: Hey, how is that new girl you're with?
Chase: Not bad, I can't wait to muck her clam.

by MuckerOfClams October 25, 2023

MUCK

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by That handle is already in use3 June 29, 2021

Muck Money

The term used by gay men who keep money and or other types of payment under or around the balls and or anus.

"I heard Frank keeps some big muck money down there..."

by gay guy #940 July 1, 2016

Muck her/him out

A new welsh phrase for arse to mouth

I always muck her/him out!

I proper mucked her out last night

by Robanna Lakiris November 21, 2013

Muck spreader

A car that has been lowered and scrapes the ground, spraying muck all over the place in rural areas. Usually has an exhaust so loud you have enough warning so you don't get covered in muck

'watch yourself, there's a muck spreader coming down the road, I can hear it'

by Skyefromstrandhill October 6, 2022

Muck Diving

Non-gender Seagulling "in the mud"

They had a wild night on the boardwalk muck diving innocent passer-bys

by Jeff's House August 4, 2019