Nipple Inspection (NI)--the inspection or observation of nipples with or without the consent of the viewed.
(1) Creeper 1: Dood I totally hit level 99 NI today!
(1) Creeper 2: Gratz bro!

(2) Knight: Ni! Ni!
(2) King Arthur: It was horrible!
by lostgame September 10, 2010
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“Yo she is black niLouis - 2020
by November 29, 2020
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Short for the term "penis." Originated in Oklahoma along with the shortened term "Za." Nis may be used in any situation including confrontations, celebrations, and general roasts.
"Hey man, you wanna go get some za?"
"Say "za" again and I'll punch you square in your nis!"
by BrattyBB February 5, 2017
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ni is an Aussie short for goodnight, night, nite
"ni everyone" meaning "night everyone"
by F.Di Silvio November 25, 2007
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1) of or relating to your personal space
2) an object or task that you cannot describe with English words

Other variation: nis-nis
"She was all up in my nis."
or
"We'll do the nis-nis and then get a sandwich."
by Amy D. April 25, 2005
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Orgamsic joy of square treats that can be either grown or bought frozen; different types: real nies, fake nies (shopping bag flavored), diet nies, asian nies, kyo nies, polish nies, french nies...etc.
Nies are so great that even Niimura Kyo wanted in on the action.
by Mitchi July 30, 2004
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