Top Definition
An expression for when you meet someone who you think is truly an idiot but instead of saying it out loud, you use this word instead and while the person thinks you're acting like a werido, you're really insulting them.
"That guy is a right idiot"

"I know, what a Nabonga"

"Shut up weirdos"

"Ha, lol, Nabonga"
by shadow_slumberer July 09, 2012

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