Faburban - A made-up word people use to annoy you by making you look it

A made-up word people use to annoy you by making you look it up on Urban Dictionary like it’s some kind of test.

My friend sent me a DM with 'Faburban' and called me a failure for not knowing it.

My brother posted 'Faburban' on Facebook and said I was a nerd for looking it up.

My teacher made me define 'Faburban' and I still don’t know why.