(Also known as Scheffler)
Schefflasaurs, meaning "chemistry dog lizard" (from the Greek Scheffler meaning 'gigantic load of homework related ions that growl at people' and sauros/óáõñïò meaning 'lizard'), is a deprecated genus of sauropod dinosaurs.
Person 1: Hey man, wanna chill afterschool?
Person 2: I can't... I've got to deal with a brutal schefflasaurus tonight.
Person 1: I'll get the caffeine pills.