What is Ni Ni?
1.
Pronouced: Nie Nie
A friendly, yet unsexual, way of messing around with a fellow friend by taking your hand and shoving it as far up into the ass as it can go and then rotating it so that the hole is feeling intense pressure so that it forces the person being ni nied to squeze their butt muscles together and succomb to the host. This is all done with clothes on.
"If you annoy me one more time, I am going to come over there and give you a ni ni!"
"I heard last night that she got totally ni nied!"
See
2.
Slang term for the word nigger
What's up NiNi or just saying "What a NiNi"
See
