9

The number 9 relates to 9/11 which was when 3 terrorists flew 3 planes into buildings and a hill. Happened in America

Really unfortunate if your number starts with a 9 😘

Guy: hey can I have your number ?
Girl: okay...9...
Guy: bye

by Cool bob September 9, 2018

9

The act of performing fellatio on yourself in a standing position or "69 with one person"

My friend gives himself blow jobs, when he does so he looks like the number 9 standing there.

by whaduzitmatr June 16, 2010

⑨

A word that is an inside joke for those who know what it means, even though nobody actually knows what it means. It’s basically a nine in a circle for a normie, but its meaning changes if you are a senpai or higher.

Normal high schooler: Oh, hey.
Weird-ass weeb: Oh wassup ⑨⑨⑨

by Monika from DDLC but sane September 11, 2019

-9

of a perverse nature, hornyness, being horny, perverted.

my voice makes you -9/ shes -9 all the time.

by hugh s January 8, 2008

9

9 is a slang for 9mm handgun. If someone says they are gonna put a 9 in you, it means they are gonna shoot you.

1: What's up dickheads? Ugly fat idiots!

2: if you don't shut your fucking mouth I'll put a 9 in you!

by Purpose Inc. January 2, 2017

9

Code for when an adult/parent/teacher whatever is listening, watching, etc.

Person one: "Yeah she said she was going to hook up with-"
Person two: "9"
Person one: "..."

by SushiMelon August 12, 2017

9

the number after 10

dude thats a 9

by Pamela Ye May 27, 2018