A Radical Islamic Fundamentalist. An extremist Islamicist normally of some kind of terrorist bent who may hold fringe beliefs like the return of the 12th imam.
Another RIF suicide bomb went off in Mosul today, wonder if it was Al Qaeda in Iraq or maybe the Al Aqsa Martyrs brigade.
by Sunburn April 23, 2008

by NebelEngel May 8, 2017

by callumanthony93 December 15, 2010

by [ISBANGKOK19321] June 10, 2018

The most intense level of fucked up that a person can get; when a person is so savage that he/she goes beast mode on everything in sight.
-Did you see Josh last night? He punched the wall and was threatening everyone.
-Yeah, man. He was pretty riffed up.
-Yeah, man. He was pretty riffed up.
by bigdaddyfrat6969 May 31, 2011

In the Federal Government, layoffs are called reduction in force (RIF) actions.
The RIF Reaper is the man who comes to your cube to tell you your services are no longer required.
The RIF Reaper is the man who comes to your cube to tell you your services are no longer required.
by FTI76 April 14, 2010
