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Tall comrades: please be considerate when projectile vomiting. Check beneath you for smol comrades. Remember, safety first!
(hexbear.net)
I'd call this a shit post but that seems biologically unfactual.
it's like a tube of toothpaste squeezed from bottom to top. there's muscle around both the stomach and the whole length of the esophagus. same muscles ensure food makes it all the way down when swallowed.