Top Definition
1. Japanese for guts.
2. A great anime song from the anime beserk.
3. wo wo wooooo wo
I have gatsu stuck in my head!!!
by ham_sandwich August 10, 2003
1 more definition
A man who has mastered the art of welly. Commonly reffered to as pinguino.
Guy: Whoa look at that guy, he's incredible.
Other guy: Yeah he's totally a gatsu!
by welly fat January 19, 2015

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