Define What 9 10 Meaning

What's 9+10
Some random ass vine made by some random ass black kid claiming 9+10=21 (obviously no racism intended)

Guy - "You Stupid."
Kid - "No I'm not."
Guy - "What's 9+10?"
Kid - "21."
Guy - "You Stupid."
By Marnie
What's 9+10
A popular vine that is commenly used as a joke.

(Exp): (1) What's 9+10? (Person): twenny one
By Cindelyn
What's 9+10?
The joke 9+10 you're should said 21

By Lorie
What's 9 Plus 10?
It's 21.

Bob the sigma
"What's 9 plus 10?"
Jerald The Beta
"It's 19"
Bob the sigma
"Inferior being, it is 21 you fucking pineapple faced retard"
By Gretta