Hafshya
A hafshya is a human being who acts like they're the only one who matters, and if they're not, they throw a tantrum.
My aunt is a hafshya. She took the best seat at the party and then said I was being ungrateful.
My neighbor is a hafshya. He yelled at the mailman for delivering the wrong package.
My brother's friend is a hafshya. He took my phone and then said I was a thief.