PiFi 

(Rhymes with Hi-Fi) Stands for a "Pheremone Induced Flirting Incident"
Originated in Iowa City and Germantown, MD.
After having great sex with your man, (or woman), you go out and are getting random flirting from all over the place. You are sending out the "scent" or "signal" to everyone around you.
Sometimes the effect goes on for days...

"I was at the mall and got a major PiFi from the guy behind the counter." "I was in a meeting and the woman across from me was sending me PiFi's."
"I got a PiFi email from my boss today asking me to lunch"

PiFi by Scarlett1218 April 20, 2007

Pifi 

Kim Kardashians Dads name for a big shit

Sometimes I drop hints that I’m around like when you hear someone make a big pifi. Or when you make a big pifi.

Pifi by hurensohnrapper0-9 January 11, 2021

pifi 

pifi is your best friend, your soulmate, your better/worse half, and the person who's always ther for you when you need her. thank god for pifi. literally the best person to ever grace the surface of mother earth.

i'm just so thankful for pifi.
pifi likes to use my 30 euro mascara.

pifi by mattys102ndgirlfriend December 11, 2016

pi-fi 

n. pirated wi-fi

We moved into the new place, and we could totally get pi-fi in the kitchen.
Tom is a chump, he's paying Comcast even though he can get three bars of pi-fi.

pi-fi by johndoe898 October 20, 2008

pifinity 

A huge number that starts with 314

it does NOT have a decimal point between 3 and 1 which makes it bigger than Pi-infinity

I love Jeff Pifinity times more than he loves video games.

pifinity by Hillary (math expert of her relationship) June 2, 2008

Pifix 

Your friend who smokes all your weed

Quan is a real pifix.

Pifix by Billybunyard January 24, 2017

pifinity 

A number containing all the digits of pi without a decimal point; or simply pi times an infinite power of ten.

What is the circumference of the universe? Pifinity?

pifinity by jeverettk August 14, 2018