Top Definition
An acronym for I just farted. You would use it in a situation when no one is talking and you want to make the people feel awkward or uncomfortable. You could also use it just to let your friends know.
Person 1: GUESS WHAT!?
Person 2: what..
Person 1: IJF
Person 2: haha....*walks away slowly*
by prettyboyswaggerzz May 16, 2011
1 more definition
Don't know, for sure. Maybe it's I'm Just F----ing Sayin
IJFS: It stands alone.
by Notmine January 20, 2013

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