ITN

Internet acronym meaning "I think not."

"You know you want to show Gabe that picture of all the penises."
"ITN!"

by ampersam November 29, 2004

ITN

"in the know" . . . only if you are truly ITN do you realize that the N stands for "know".

We went to this bar in Williamsburg that was so ITN it didn't have a name and you had to climb down through a hole in the sidewalk to get there.

by hoolia August 29, 2005

ITNS

Another made-up acronym used to save time, which, in fact, costs people more time because they have to look up the definition of said acronym on the internet.

ITNS: "Is This Nigga Serious?"

"Ayo, lemme get $5"
"ITNS?"
"What does ITNS mean?"
"OSN. Look it up."

by HamTonks June 14, 2009