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(foo-pee-knee) A fool that often gets mixed up when people are simply joking or being flat out serious and at times cannot tell the difference. To the extent that pini is added to the word foo to make it that much more intense.
Person 1: Bro can you believe I got out of going to dinner with Ashley's parents when I told her that I had to babysit my sisters kids.

Person 2: Forreal?

Person 1: Yea! And thats that I always complain of being the only child growing up. She even offered to bring over some cookies and coloring books!

Person 2: Damn what a foopini!
by Beewhyarrrohhhenn April 12, 2011
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