this is suptile way to let others know you're pansexual.

83 is atomis mass of Protactinium, which has sympol "Pa"
person 1: have you seen his bio? he has "91 protons"
person 2: you know that means he's pansexual, right??
by 91protonssss April 29, 2023
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To clean something with 91% isopropyl alcohol, that you let get nasty dirty, like a bong, pipe, piercing ext
Yo bro you need to 91 iso that bong .
That piercing looks nasty better hit that 91 iso.
by Human Being 3 August 29, 2021
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October 91
Is a day where everyone finds out your a dumb fucking bitch, good luck bitch

Go around telling people that it’s time to celebrate
Person 1 : hey it’s October 91,have you seen that girl I forgot to tell her that she’s a dumb bitch
Person 2: oh I forgot too

Let’s go find her
by 263628/)728278484 November 1, 2019
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A new rule stating "If it exists there is inflation art of it" no exceptions. This rule can be used in many inflation scenarios including but not limited to: Body inflation, Blueberry Inflation, Head Inflation, and many more. This also means if there is not any inflation art to a certain fandom or IP there will be.
"Bro why the hell is there Sonic inflation porn?"

"Oh you mean Rule 91?"
by DJ Cat Punk January 3, 2021
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