Factass
Someone who thinks they’re smart because they know facts that no one cares about
'I told my boss the average lifespan of a goldfish is 10 years. He said I was being a factass.'
'I told my crush the Eiffel Tower is 1063 feet tall. She said I was being a factass. I said I was being a romantic.'
'I told my brother the first president was Washington. He said I was being a factass. I said he was being a factass for not knowing.'