Top Definition
Sinamachai is a proper noun that describes James Goodman when he is RIPPED. It is actually his nickname, although he made it up himself, which is kind of illegal. He is a white trash burn-out.
Sinamachai, you can only be kicked out of the dorms once. You're so worthless that you'll be working at a minor league baseball stadium for the rest of your life.
by Jerry Spinelli June 15, 2004

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