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.
by FL4ym3Burn July 26, 2019
Get the Crate Muck-upmug. 1. Consciously, with very firm motivation, doing whatever the f**k you want, whenever the f**k you want, however the f**k you want, with whomever the f**k you want, simply because YOU can without explanation, rhyme, or reason as to why, all while having the most fun ever and avoiding the law.
by creatorofquinn January 27, 2021
Get the runnin-a-muckmug. Boy 1: hey dude why do we have such stupid names why is my name boy 1?
Boy 2: don’t know and don’t care let’s play muck
Boy 1: ok
Boy 2: don’t know and don’t care let’s play muck
Boy 1: ok
by Carramon August 10, 2021
Get the Muckmug. by Lesliegrantham July 21, 2018
Get the fuck your muckmug. by Captian Corcoran October 14, 2015
Get the pussy muckmug. 
by Jenny the butt April 10, 2019
Get the Mucka-Muckmug.