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Windows 99

It's a fake OS that (i think so) Verbose the Talking Cat made it (his video: When A Gamer Installs Windows 99), it is an hidden (fake) OS that looks so new, yet it is made from combining 2 old windows versions (Windows 98 and Windows 1.00), It has many bugs and glitches, but also, LORE, and any time you try upgrading or downgrading to something else, it blocks you from doing so, outages cant turn off the computer Windows 99 is in, so basically, Windows 99 is an secret (fake) OS hidden by Microsoft, and it has LORE.
1: Have you seen Windows 99, the Secret hidden OS?
2: I think so, the computer in my basement has it installed after i switched from Windows 1.00 to Windows 98
by Duper NO! December 14, 2023
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'99 bro

A guy that was between 18-23 in 1999 and was an absolute tool then and still is. Ex: every dude at Woodstock 99.
He's a '99 bro.
by AJTT December 4, 2022
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99

a mysterious number in baldi's basics. the most number to be this easily found is in blue doors of the game itself that say 99 as it labeled. you can find this number elsewhere like. collecting extra 2 notebooks in birthday bash (glitched school) 9/9 notebooks. (no number to be found in this screen but) getting the 99 jumpscare (rare game over screen) etc.
blue doors: 99
player: HMMMM
by caughtin8k December 11, 2022
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99

Sex in a strip club whilst wearing maid costumes.
"wanna join in on our 99 later, UwU?"
by GrimReaperRD January 24, 2021
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20/99

It's a way to reference 9/11 particularly in a derogatory term for Muslims or any Middle Eastern person.
Bigot: ¡Uh-oh! I see the rags here come the 20/99
Me:¿What's a 20/99?
Bigot: It's a way to reference 9/11, ¿get it? 9 + 11=20
9 * 11=99
by EmJayee February 3, 2021
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99 %

99 % is the Absolute worst thing in geometry dash Especially When it is the hardest level Tartarus
Bob died at 99 % on Tartarus
by incylix February 21, 2021
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Rule 99

Hitler’s law

If it exists, Hitler has reacted to it (most likely the Downfall version of Hitler)

See also: Rule 99.9

If he has not yet reacted to it, he will
Videos or gifs of Hitler reacting to memes and pop culture that came into existence over 70 years after the fall of the Third Reich which in any event would have absolutely no relevance to an unhinged tyrant watching his world collapse around him is a perfect example of rule 99

Hitler reacts to the new Call of Duty - textbook rule 99
by Alex-2598 February 25, 2021
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