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.
"Non-Interactive Scene"
Primarily used in the games industry to describe a cutscene where the players control of the character has been temporarily deactivated to watch a series of events.
Dude, did you see that NIS where that zombie jumps out the hallway and knocks you downthe stairs? I totally papped myself.
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.