Nyaaa!
The sound emitted by the world-famous, action star Arnold Schwarzenegger either in times of stress, or great pain and anguish.
"Go, get to duh choppa--Nyaaa!"
Nyaaa!
A phrase that was oft employed by those famous lead singers of the "hair metal" genre of bands from the 1980s.
"ROCK you like a hurricane! NYAAAAAHHHHH!"