Japanese for Uncle. Not to be confused with Ojiisan, which means Grandpa.
My Ojisan is going bald.
My Ojiisan is going short.
by Spazmatik Illusion January 17, 2006
Ojisan literally means Uncle in Japanese.

Can also be used as a slightly impolite way to address a middle aged man, similar to the English "Mister".
My Ojisan is visiting from Osaka tomorrow.

Excuse me Ojisan, which train goes to Kyoto?

Hey Ojisan, keep your hands off my girl.
by DicemanLucky7 July 10, 2008

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