electric toothbrush
Definition
A toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation-oscillation, to remove dental plaque and food debris.
A sophisticated gadget designed to make you feel like you've conquered your morning routine, even if you only use it for the mandatory thirty seconds.
Examples
My electric toothbrush has more computing power than the Apollo 11 moon lander, yet I still manage to miss the back molars every single morning.
He treats his electric toothbrush like a luxury sports car, carefully cleaning it after every use as if it were about to be entered into a concours d'elegance.
The sheer vibration of the electric toothbrush is the only thing standing between me and a very awkward conversation with a judgmental dentist.