OSI (Operating System Index) 

OSI (Operating System Index) A method to determine the level of geekiness or nerdom in an individual using the number of operating systems they use.

Larry: Lewis has so many damn computer gadgets.
Bill: I know, right? What's his OSI (Operating System Index) then?
Larry: 6

OSI (Operating System Index) by daygzzz November 4, 2012

pistachiosis (pis-ta-she-o-sis) 

Refers to a disease a person gets when their stash dries up.

After smoking all her weed that weekend Ally had pistachiosis (pis-ta-she-o-sis).

pistachiosis (pis-ta-she-o-sis) by McNeal February 4, 2008

Osist 

1. The belief that an Operating System accounts for differences in human character or ability and that a particular Operating System is superior to others.
2. Discrimination or prejudice based on Operating System.

(23:48) @DralaFi: i hate it when windows software asks for exit confirmation. its so over the top, and they do it because they think its good HCI.
(23:56) @ChaosTime: will you please stop being such a snob?
(23:57) @ChaosTime: you ALWAYS bitch about windows when ever you can
(23:57) @ChaosTime: -_-
(23:57) @ChaosTime: if linux and windows were people, you'd be a rascist

Osist by ChaosTime September 7, 2005

OsisNie 

The father of nipponsei. The highest on the OP totem pole (depending on your thoughts on Generalsmoker and minglong).

Leads with a stern but fair hand... unless you happen to be the subject of his ire.

Then again, aren't all fathers all like that?

<astheuon> click here: (porn link)
<astheuon> click here: (porn link)
<astheuon> click here: (porn link)
* OsisNie sets mode: +b *!*@3D90DA9E.E09CE52A.5484086D.IP
* astheuon was kicked by OsisNie (No)

OsisNie by nipponsei family member February 23, 2005

Osism 

A word or phrase that has nothing to do with the current conversation and has no relevant meaning to what is trying to be said.

You and your Osisms.

Osism by HamJak February 20, 2011

Osissive 

The right type of calmness

The breeze is so osissive, it's perfect

Osissive by Osissive June 18, 2016

skankyflirttomuch-osis 

a disease where one flirts uncontrollably; where one will flirt with others without even trying

Sarah: Who's that girl?
Alyssa:That's Courtney. She always likes to hang out with the boys because she has skankyflirttomuch-osis.

skankyflirttomuch-osis by ang4polo August 24, 2010