look up any word, like blumpkin:
 
1.
My best friend from bulgaria. he is supa smart and dupa cool. He smokes grass and eats food
He speaks Bulgarian
by Jon Schwartz August 25, 2003
 
2.
A Norfolk, English work meaning 'Strange'
Man 1: Look at that man he has a shoe on his head.

Man 2: Yes he is a total Rumen
by captainDB July 30, 2008
 
3.
The first chamber of a ruminant's stomach in which bacteria break down food before it is returned to the mouth to be chewed as cud for nutrition.
Bubba: "Is Jolene got that PMS stuff...she been mighty cranky lately." Leroy: "Naw, her rumen upset."
by harry flashman July 30, 2003