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A nilmoo is someone who interrupts you while you're doing something important. Nilmoos don't mean to be rude, they are just desperate for your attention, so give it to them. We love you nilmoos!!
Person 1: "Dude, what a nilmoo."
Person 2: "Hey don't be rude, they just need attention."
by DERPEEDERP September 28, 2017
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