Vodka eyeballing is when someone pours vodka in their eye as a way to get drunk quickly. This is a very dangerous thing to do and can cause serious harm to your eye or even blindness. Our eyes are very sensitive and were not designed to process alcohol. So, when someone pours vodka in their eye, it causes a burning sensation and can damage the eye's surface or even the cornea. People should never pour any liquid into their eyes, especially alcohol, as it can lead to permanent damage or even blindness. It's always better to drink alcohol the regular way and in moderation, meaning not too much, and not too quickly.