Ashley: This is 1 to 10 with each number only in one-syllable: One, two, three, four, five, six, sef, eight, nine, ten.
Penny: Oh, that's cool.
Penny: Oh, that's cool.
by Lighter_Waterfalls April 3, 2020

by Sam "Dutch" Dalsimer September 24, 2008

by CHELE October 4, 2012

Sef-ism is a belief system, creed or political ideology that every ideal, action and especially personal opinions express only apathy. Led under the Leadership of Sef The Indifferent in the early 21st century.
"I dont care, long live Sef-ism"
by Sef The Indiffeerent March 27, 2013

SEF is an acronym for the term “suicidal emo fag.” It is derogatory in nature and is used by insecure males on Omegle. Usually used by those with lower IQs.
by realgamer445 July 24, 2020
