3 definitions by life guard

A crazy person with a awesome personality. Most of the time one-ups people or in other words is really smart. Takes risks when others won't... might not be the best singer, but makes the most fun of all situations.
This girl is a real YiSu, wish I had an YiSu as a friend.
by life guard July 4, 2015
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The girls that work in the snack shack... opps, i mean Sand Castle
Damn, that Katie is such a sand skank
by life guard July 23, 2008
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Someone who is cocky and self-confident about his appearance and and his abilities. They have some good qualities like being a good person at heart, but doesn't act it or show it. They sometimes are very sensitive with their emotions, but holds up a barrier that helps them from breaking in the inside. They do good deeds, but also bad ones. Kai is pretty much the human version of yin and yang.
Life isn't without Kai in the world.
by life guard July 4, 2015
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