os-tan 

Os-tans are anime personifications of operating systems as girls. Another name for it them is OS-girls. It all started when some random guy in Japan working at futaba channel thought Windows ME was like a tempermental troublesome girl who did all kinds of stupid things that lacked common sense.

person1: Xp-tan is a os-tan she has really big boobs!
Other person: YOU ARE PERVE!

os-tan by clueless_furball November 1, 2006

ostanz 

You are the baddest bitch, go and declare your love to your crush

Ostanz is a bad bich

ostanz by Bibuz May 14, 2021

Ostanik lean

The Ostanik lean was originally created at north Marion high school after a f-150 5.4 triton v8 revived a deafening exhaust and a lean at the point that the hitch almost touches the ground. The it revived 28 inch “dubs” and then factory wheels. This vehicle sounds like a raspy gramma coughing but moves like a sloth!

Holy shit that ostanik lean is disgusting

Ostanik lean by Danknmhsuser April 9, 2019

ostantino 

when someone is REALLY snob

he is such an ostantino, he hasn't answered me for five hours.

ostantino by sakistakis November 29, 2020

Ostanding 

A word that is used by awesome kids

You get a O for ostanding, you showed us how to get to your house.

Ostanding by Saber tough January 1, 2022