A dubious mercury-poisoning-like illness named after actor Jeremy Piven. The first documented case befell actor Jeremy Piven back in 2009 and caused him to miss several performances of the Broadway production of SPEED THE PLOW. While Piven claims that the illness is caused by eating too much sushi, it my be exacerbated by excessive partying, drinking, sex with prostitutes, and overall douchiness.
I can't go out for sushi with those whores again. I may get a case of the pivs.
by jdavisbruin February 23, 2012
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I have only had PIV sex with her so far.
by axewound July 22, 2004
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penis in vagina sex (TLA/three letter acronym)
It can be used as a verb as well as an adjective
Verb- "I don't feel like PIVving tonight."
Adjective- "We had PIV sex for the first time last night."
by mistress March 29, 2005
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(adjective) |pɪv| Based upon the physics equation - Power = Current x Voltage (P=IV) - the term "piv" has evolved from this equation to be defined as a person who acts irrationally, behaves like a dog, and lacks countless social skills which causes this person to become ill-mannered in all social situations.

(Correlation between the equation and the term piv has no correlation in meaning, however the phonetic pronunciation is derived from this equation)
" Logan: (talking to his camera) Hey guys! Welcome to a new video, today we're gonna be tasering some dead rats so stay tuned also buy my merch-

Man: (pauses video) This guy is an absolute piv. "
by brainchildren February 16, 2018
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We got all retro this weekend and had PIV sex.
by Al-BadDaddy February 10, 2020
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Stands for "Person Important Very". Nothing naughty!

It's a highly elite club you have to spend £1000 a month for. Just don't go advertising it in an actual casino or you'll get kicked out with taco laugh inducingly hilarious results.
"Join the PIV!"
by Lefty Power 123 October 13, 2021
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Acronym pronounced pee-eye-vee. It stands for Penis in Vagina but when used in the form of an acronym, it is much like saying cool or awesome. Use it sparingly and only when the situation is the best of the best possible situations.

It was coined in 2003 by human sexuality guru, Kidder Kaper of the "Sex is Fun!" radio show.
Hot tubbing with naked chicks is PiV.
I won a PiV Porche in the lotto.
That threesome was PiV.

by Coochie Sax May 15, 2006
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