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(verb) An abbreviation for "I peed (or pissed) on Old Faithful." This term is used by an elite group of persons who have been able to sneak onto the famed Yellowstone Geyser and successfully relive their bladder contents onto (or on legendary occasions into) said Geyser. If caught attempting or in the act of joining IPOOF or even confessing to joining it before to the wrong person can result in severe punishments. Punishments include being fired from your work at Yellowstone National Park, a $750 fine, being banned from the Park for several years (which would prevent you from doing IPOOF again), and even being mauled by Smokey Bear himself.

Since the installment of the Webcams at Old Faithful, it has become near impossible to join IPOOF without being caught; thus, most successful members tend to be boomers, doing so at night.
My father is a member of IPOOF.
I got fired from my concessions job at Yellowstone National Park for becoming a member of IPOOF.

I got drunk in Yellowstone and joined IPOOF.
IPOOF by Partridge of Crater Lake October 17, 2022
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An iPhone or iPod that has been used on the toilet to play games or browse the inturdnet.
I don't know whether I would want to borrow Reno's iPood. He never washes his hands, and he drops deuce with that thing every morning.
iPood by dswiggles December 18, 2010
Related Words
IPOOF • iPoop • ipoo • ipood • iPooped • iloof • ImOof • ioof • iPodfukt • ipooched
To have a crap whilst listening to your ipod.
Hey john... I just ipood.
ipood by Trucast November 27, 2006
someone who while talking to you keeps one ipod earpiece in as if your only worth one of their ears.
ipoon by scooter1 September 1, 2007
when you are in the act of deficating on a toilet and using your iphone at the same time sometimes causing someone to loose trake of time.
Mom: son, i was waiting in the car for you, what took you so long??

Son: sorry mom i had to ipoop
ipoop by jpoopg January 28, 2010
Using an iPhone to access the Internet while on the toilet.
I didn't want my boss to see that link you sent me, so I ipood it at work.
iPoo by DrDonzo October 13, 2009
Ipad used for the sole purpose of entertaining you when you take a dump.
I took such a long dump yesterday that I had the time to get 3 stars in every Angry Birds level on my ipoop.
ipoop by L123. July 1, 2011
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Ajumma wait a moment
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Slop Grenade

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Brent: he just tossed me a slop grenade
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