Muck Butt - the dirty, slimy, stinky, sweaty, itchy feeling you get in your ass crack after going too long without bathing. Usually occurs after long backpacking trips, or in people with poor showering habits.
After backpacking for a week without bathing, Jason couldn't wait to get home and clean his muck butt.
by Scamtrack February 06, 2016
by Word Madman March 28, 2019
I'm getting a flabby chair butt from sitting at my office desk 9-5 everyday and not getting up all day long. Time for some exercise and a stand up desk.
by G_W_G September 11, 2013
by EasternKanye November 29, 2021
by Thon November 04, 2007
a hair-filled piece of ass lint
by Tango Golf July 11, 2008
by Bob Sachet April 18, 2006