A vulva (pussy) that has labia minora (inner lips) and clitoral hood that are hidden by the labia majora (outer lips) when the legs are closed. This is in contrast to an outy.
My girlfriend has the prettiest inny pussy I have ever had the pleasure of toying with.
by Brent Lewis August 1, 2006
"inni" comes from "innit" which comes from "ain't it" which comes from "am not; are not; is not > it."
she's quite fit inni?
by BoSviLLd November 23, 2003
Just short for “In this”.
Person A: We back innis again, my nigga
Person B: Word
by nevermoreee January 17, 2018
"Aren't I" or "haven't I" - as spoken by people from London / Essex.
"Wanna go down the boozer mate?"
"Nah, I'm fucking knackered inni, gonna get an early night"

"How about going fishing at the weekend?"
"Sorry mate, gotta do some work on me motor inni"
by lawndog April 14, 2008
When you stick your thumb up your man's ass while cupping his balls with the remaining four fingers.
Texas Jack: Shit, my after the date last night, I got Innis'd and I don't know if I liked it or hated it.
by BigJoeyBear April 2, 2019