Top Definition
a degenerative pronunciation for 'know what I'm saying'. Used as an interjection to confirm the listener's understanding or at least attention to the speaker's comments.
No obvious connection to scholar Noam Chomsky.
Cuz: That symphony was simply delightful, noam sain?
Bro: Indeed -- the french horns were even playing in tune!
by Figleaf23 August 05, 2007

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