Fat Overweight Penis. When a mans pelvic mound grows as he gets fatter thus making the penis smaller in length.
He'd be better in bed if he didn't have that FOP.
by SModfan December 14, 2007
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Fibrodysplasia Ossificans Progressiva
1.) A severe disorder that causes connective tissue and muscles to ossify (Turn into bone). Malfunction of body's repair mechanism ultimately turns skeleton into solid shell. It is diffucult to predict where and how bone will grow. Life expectancy never exceeds 40 years.
oh man, your muscles are turning into bone, you must have FOP
by Jimmyzblahzhaz February 17, 2009
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Fucking Old Person- noun
1. The FOP drives like Mr. Magoo.

2. Is that FOP running for President again?
3. In jest, my late fathers screen name FOP1927.

old fart old fuck asshole assheimer old geizer dickwad
by Vir-sinya August 7, 2009
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It can be a replacement for any verb. The origin comes from the word for Minecraft dog, Fopple.
FOP THAT DAD
by Furret Libre July 28, 2020
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In more official terms, FOP stands for Final Operation or more colloquially known as Fuck Off Party.

The FOP is the final event that is held for a well known acquaintance before they move away permanently or from a section from their life if seen fit. Normally the Hate Game is played
Person 1: Did you hear that Michael is moving abroad after he finishes his course?
Person 2: Really?!? We need to organise him a FOP before he goes
by ghirlinu January 27, 2020
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