Hum Noi is Thai slang for small penis.

see small penis
by @TheRealCarlAzuz April 1, 2018
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Hum Noi means small penis is Thai..
Hey you over there you have a hum noi.
Person over there dosent know what that means

See amazing
by @TheRealCarlAzuz March 30, 2018
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Slang for tiny penis also known as floating lobster if you look it up on Google translate
See now every time there is a dead lobster say hey hum noi
by Ooooooof hehehe May 18, 2018
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