resident expert
Someone who thinks they know everything about everything when really they're just annoying and don't know that much.
AKA know it all
AKA know it all
"...."
"Where'd you hear that?"
"Jes told me..."
"Yeah, she's the resident expert isn't she?..."
"Where'd you hear that?"
"Jes told me..."
"Yeah, she's the resident expert isn't she?..."