Hokkien. Short for kan ni na.
Literally "fuck your mother". Commonly used to express irritation or dissatisfaction.

Commonly used in Singapore and Malaysia.

Not K-Nearest Neighbor used in Machine Learning.
KNN! What the hell is this?
by Dr. Cham Liao La, MBBS, CFA March 03, 2021
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short for KANINA or
"fuck your mother"
usually a swear phrase
used in singapore
KNN! My LJ put into your CB, now I have syphillis!
by Pika July 22, 2003
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