Top Definition
Someone who thinks they know everything about everything when really they're just annoying and don't know that much.

AKA know it all
"...."
"Where'd you hear that?"
"Jes told me..."
"Yeah, she's the resident expert isn't she?..."
#i know everything #know it all #resident expert #smart ass #smarty pants #jackass
作者 Not the resident expert 2007年10月21日
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