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1.Gusu was first found in Starcraft league matches in South Korea.
Gusu refers to a pro. Especially in a gaming event, but can be used to reference other things

2. A Korean.

3. Meaning 'good' in Japanese
Man that guy was so gusu!
by MICHAEL LONIELLLO October 24, 2010
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Acrony, for Gay Ugly Stuk-Up.
She nice but her brother is so GUSU.
by Paul August 23, 2004
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