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1.
epo
Adjective. Feeling melancholy while or just after listening to Éponine sing in "Les Miserables."

Origin of EPO: from Éponine, a character in Victor Hugo's Les Misérables, as she is portrayed in the Claude-Michel Schönberg musical of the same name; emo
"Whenever I listen to the second half of 'A Heart Full of Love' I get so epo."
"I can't get through 'On My Own' without becoming so epo I cry."
by MissKaraoke May 25, 2013
 
2.
The delicate yet elusive act of taking a car and ploughing it through a grassy pane, wether it be a park, field or any area that has grass on its surface. Some fear EPOS, others have it in their blood.
EPOS professional: Fancy epos'ing the absolute fuck out of that park a bit later?
EPOS assistant: highly deece
by George Thomas! August 20, 2009
 
3.
Enjoyment Prevention Officer. Usually used to describe a woman that guilts, nags or otherwise prevents her boyfriend/husband from having a good time with his friends.
Bob: "Sorry guys. Gotta leave. Nancy wants to go home now."

Guys: "Aw, Nancy we were just starting to have fun! Why do you have to be such an E.P.O.?"
by AprilRain May 13, 2010
 
4.
Epo
1. Amazing

comes from the word 'Epoflondorious'
Derek Jeter is so epo at baseball.

Michael Jordan was epo at basketball when he played
by Pinekone November 24, 2006