ifsb 

Acronym for "I feel so bad"

Girl1: HA that girl is lookin like a hoe!
Girl2: Omg ifsb for her

ifsb by speaknow August 8, 2011

ifsbfy 

I feel so bad for you

David: Dan, don't you have a midterm tomorrow?
Dan: Yeah, I haven't even started to study.
David: It's freakin' 2am in the morning, why have you been redditing for the past 6 hours?! ifsbfy, ysd.

ifsbfy by Cunning Stunts October 2, 2012