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A very popular Sarawakian Chinese slang (A region in the Borneo) to express "what the hell", "OMG", "gosh" or something else similar.

Once you hear someone else called out "ngaiti" you could directly conclude that they are the Sarawak people.
Ngaiti! Its alreasy 12am and you're still eating!!!
by maxor_gan May 30, 2011
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