laaaterrrrz
doing something because you're too lazy to finish what you were doing, or you're just being a smug know-it-all about it
He left the game to go eat pizza, that's just laaaterrrrz.
She ignored the homework, that's just laaaterrrrz.
He dropped out of the conversation because he was too busy being a smug know-it-all, that's just laaaterrrrz.