nying-nying
The sound that someone makes while he/she inserts two or more fingers into another an asshole, often between homosexuals teasing each other.
Example:
Victim: Dude what the hell are you do-
Culprit: *nying-nying-nying*
Victim: AHHH that hurts so much.
Victim: Dude what the hell are you do-
Culprit: *nying-nying-nying*
Victim: AHHH that hurts so much.