Top Definition
Obsessive/Cumpulsive behavior of one who partakes in methamphetamines.

State of being on muck
Armed with his Dremel and his handy bag of bags of things and stuff, the gased up tweeker began muckin' with the broken TV in an attempt to fix it.
by Moji JoMama August 23, 2003
being high (usually on weed) and drunk at the same time.
Yo son last night we was muckin' at that party.
by oh yeaaaa28 November 01, 2009
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