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1.
Involuntary Fist Pumping Syndrome. When someone breaks out in a random frantic fist pumping rage as if there was a beat that was fighting them and they had to beat that beat back. Common cases of IFPS have been reported all over the Nation, but top medical scientists say that the Pandemic started In whats known as The Jersey Shore. A documentry on MTV named Jersey Shore showed how people live with IFPS, and how harmful it can become to ones mental health. Living IFPS was origanlly suppose to be and episode for TrueLife but MTV recoqnized the seriousness of the issue of IFPS so they decide to make a documentry instead. Symptoms include but are not limited to Violent Behaviors, Heavy Drinking, and in the worst cases people have been reported to fist pump to death. This sickness should not be ignored if your friends start to seem like they have IFPS you should follow Doctors Orders and not hang out with Douchebags.
Vinny: Yo it looks like Ronnie's got IFPS.

Mike (The Situation): Yeah man it does. Yo Ronnie beat that beat!
by The Doctor Thunder March 21, 2010
 
2.
IFP
1) Ideal Farting Position
2) A position of the body where the emission of flatulance is conducive.
'Don't spread your legs on me- hello?! IFP!!!'
by Jean-Anthime Lemery January 02, 2009
 
3.
IFP
Abbreviation for : Inward Fist Pump

The action of clutching one's fist while quickly retracting the arm towards the chest or shoulder to express a feeling of victory or relief.
A. "Oh man, I totally forgot to do my taxes and they're due tomorrow!"

B. "Didn't you hear? The president just declared a month-long extension for our county since we were in a flood zone! Taxes aren't due until May 11th!"

A. "What?! Really!?! YESSS!!!" IFP
by psykey689 April 15, 2010
 
4.
IFP
In For Picture. Used when people request picture of the subject's g/f, sister, sister's cousin, sister's best friend and any female pictures that has nothing to do with the thread topic.
My sister's car has problem idling. What could be the problem?

Reply: Pics of your sister?

2nd reply: IFP!
by sidehop August 14, 2006