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Acronym: Oh Shit It's Monday Tomorrow.
antoym of TGIF
Person 1: "Ready for the test tomorrow?"
Person 2: "OSIMT."
OSIMT by Chewman September 12, 2010
Related Words
Osiris Osi osian osiel OSIM osinachi OSI model osias Osiah osita
Osirs are very happy and loving creatures. In their natural habitat, they can very outgoing and have a strong belief that all members of BTS look the same. They tend to laugh at everything and their hobbies include directing high-quality movies and shorts, obsessively and compulsively watching Bob's Burgers, and photography. The native alliances with an Osir tend to be Pretty Odd (panic! at the disco) and are almost always koreaboos.
Native Alliance: Osir! Did you listen to that new BTS song?
Osir: nO.

Native Alliance: Osir! Watch this video of BTS on crack!
Osir: *watches video*
Osir: *laughs until she dies*
Osir by LindaMarley June 10, 2018
A boy who is simply just good at everything he does. 😁.
I wish I could be OsimeπŸ˜‚πŸ˜
osime by Friyayyy March 9, 2019

Osibanjo 

To mislead by a false appearance or statement.
Someone who regularly lies or someone who deceives people
Authorities are becoming increasingly interested in spotting osibanjos who apply to work for them.
Osibanjo by McHarold September 26, 2019
1. The Egyptian god of the underworld

2. The best damn skate shoe company in this time period
yo, I just got some new Osiris, lets skate
osiris by chrisss January 19, 2006
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