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1.
epf
a combination of ehh, yep/yup, and pff.
a sign of indifference/sarcasm.
used best when replying to a question or statement that you don't really care about.
for use while typing (text, or online)
Friend: how was swim practice?
You: epf.

Friend: that was some good mexican food, wasn't it?
You: epf.
by Tyler McNizzle December 30, 2008
 
2.
Epf
Epf is a sound made when somone say's something to you that you think is a waste of breath....a reaction to a idiotic statement....
Jerry.."hey Buttox I havent drank or smoked or eatin meat since new year's"

Dave...."Epf.."
by Dave Buttox May 17, 2004
 
3.
epf
epf to tha ap to tha brabity!!?
you know... epf!
by jerk-ov May 08, 2004