A meaner way ti say hey ur a pu***

Short for positive. Being upbeat and having a positive outlook on life.

the anal sphincter, as used by Jackie Q in her hit song "Ring 'Round" in Get him to the Greek.

posi is short for the word positive. commonly refferd too in the style of hardcore music. positive hardcore becomes posi hardcore or posi core

In hot-rod groups, short for positrac. Positrac was the GM trade name for a differential gear which would lock under severe loading to ensure that both drive wheels were turning. Highly desired in drag racing. The positrac name is now mostly generic in usage, with many racers referring to every locking diff a "posi".

short for positivity, a term used often by people who want to keep life positive and/or happy.

Posh girl, with an (almost obsessive) taste for alcohol.
She often tries to make friends, and can often be seen surrounded by a large group of them.
Posy likes clothes, shoes, and hats.
Can also be used as a term to describe something cool, or eccentric.
Also known as 'Posy-choo', 'Posalina', 'P P P Posy'...