"JIFC" is a internet acronym meaning "Just in fucking case" created on Dec 7th 2007 by Steam User ID Macepup. Used commonly when expressing sarcasm for safety.
"I think I heard something outside, I am going to take my gun and check it out, brb"
"FULL MOON BTW!! JIFC load with s1lv3r bull3ts!!!1!"
by Macepup December 8, 2007
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