Top definition
one of the best words ever invented, and quite versital as it can be used as a noun, verb, and name. It means anything desirable but can be used specifically to fit the needs of your conversation.

It also can be used as an interjection in wildly innapropriate situations.
kevin: "dudeee look at that bonsu!!
erin: no wayyy, i'd soooo bonsu that!

dan: yesterdayyy we're rooby rooby rooo
kevin: bonsu!!
by rabbi kerin August 12, 2009
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