B.I.U.
Bold Italicized Underlined: the way you make your text look like it's screaming at you. You use it when you're too lazy to write a normal message but still want to sound cool.
My friend sent me: 'We’re gonna win. B. I. U. because I’m too tired to type normally.'
My teacher said, 'Homework is due. B. I. U. because I’m trying to scare you.'
My dog barked at me: 'B. I. U. because I’m mad at you.'