or 'Shibui' or "Shibbeeeeeeeee!". (Japanese)
Cool, but in a kind of frumpy, retro sort of way. Also bitter or astringent (commonly used to describe the flavor of green tea, but not coffee, which is decidedly "nigai").
In Australia it is generally only used by the less firm-wristed members of the gay community. Because this word sounds like it is Japanese, it is often used to describe articles of Japanesepop-culture.