look up any word, like the eiffel tower:
 
2.
A brand of gell deoderant.
that mitchum smells fairly good.
by Xiophillio April 14, 2009
 
1.
Semen, male ejaculate. Named after Robert Mitchum, actor, due to his being almost the definition of masculinity, of which semen is the ultimate by-product.
Past-tense: mitchummed.
Peter North is notorious for his ability to produce voluminous amounts of mitchum.
by thejunk January 27, 2007
 
3.
The act of skipping a day or two or ten from all hygenic upkeep. Thus, resulting in one funky mutha fucka! Febreeze cannot save this individual!
Dude 1: Hey, check out that sasquatch looking freakshow over there.

Dude 2: What is that?!? Are those stink lines emanating from that furry monstrosity of a man?...Grooossss!

Dude 1: No way! That swamp ape is clearly suffering from a severe case of Mitch'um. I guess he took their motto seriously! Does he have no shame?
by Balls_of_Fury August 15, 2011
 
4.
A weird little brown beetle, often spotted in large groups, commonly found in festival tents. They seem do mysteriously disappear in the rain and then re-appear in your clothes hair and generally in anything you leave in a tent.
Hayley: ,aahh, look it's ,pissing, it down!
Ellis: I ,knoww,! The ,Mitchums, infestation has completely disappeared!
Hannah: Where do you think they go?
Matilda: ohh...there around...
by DuttyBeverly July 27, 2009