And the next time you've got your nose in someone's armpit, think back to a time when commuter rail was an exciting, magical and even terrifying new technology.
They'll also shave under their arms, what we would call their armpit, " armpit." Your armpit is that space underneath your arm that connects your arm to the rest of your body.
But despite becoming mostly bare, we retained plentiful hair in our armpits and crotches becoming the only mammalian species in the world to have long, coarse pubic hair.