The opposite of "it".
ROBIN: I was looking for it.
KNIGHTS: Aaaaugh!
ROBIN: Uh, here, here in this forest.
ARTHUR: No, it is far from--
KNIGHTS: Aaaaugh!
HEAD KNIGHT: Aaaaugh! Stop saying the word!
ARTHUR: Oh, stop it!
KNIGHTS: Aaaaugh!
HEAD KNIGHT: Oh! He said it again!
ARTHUR: Patsy!
HEAD KNIGHT: Aaugh! I said it! I said it! Ooh! I said it
again! That's three its!
KNIGHTS: Aaaaugh!
by CIURCA June 17, 2005
Niš is a city in Serbia and one of the oldest cities in the Balkans, and has from ancient times been considered a gateway between the East and the West.
Constantine I, ruler of the Byzantium empire (4th century) was born at Naissus, (today called Nis, Serbia)
by CrnaStrela September 5, 2005
Ni! Is a word used in Monty Python's Flying Circus: Search for the Holy Grail and Monty Python's Spamalot. It has no actual meaning, and is often used merely as an in-joke.
"We are the knights who go Ni!"

"NI! NI! NI!"
by Knight of Ni February 7, 2008
Natural Insemination. Insert a man's penis in tou a woman Vaginalk cavity. After forty thrust the man ejaculates in the recepient. The person is to help a lesbian couple or a single woman conceive. Pro bono. Not done for malicious person. Recepient want to comn\nceive a child
I NI'd Yvette for four cylces before she finally got pregnant. Lesbian couple looking for NI donor that is D/D free
by pavodeBronx February 7, 2008
pronouced nee-es, refers to the area of skin between the testicles and the anus. from spanish, "it is neither" because it is neither the balls, or the anus, but an area between. synonyms include: chode, gook etc.
"my girl found me making out with her sister, so she kicked me in the nies."

"that girls a freak, all she wanted to do was lick my nies."

"after a long walk outside, jose had a very sweaty nies."
by jaylove August 22, 2007
Not Interested
Used on Ugly Betty by Receptionist Amanda Tanen. Usually you close you hand to indicate 'shut your mouth'.
Ugly Betty
Kimmy Keagen: "In my old job we had uniforms"
Amanda: "NI"
by Genius_Me July 21, 2009