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a chinese last name. Used in Taiwan. Otherwise Cai in Mainland China
Tsai is the 24th most common Chinese family name.
by didorider December 19, 2005
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Asian terminology synonymous with the words:

1. Cool
2. Hip
3. Awesome
4. Random
Wendy is such a tsai when it comes to life.
by 131olds October 07, 2007
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