Top Definition
An adjective describing the pain and suffering that is the embodiment of the IB program, and its treatment of the High School students who have the misfortune of signing their social lives away for and continuing with it.
It is comparable to the Ninth circle of Hell, as seen in Dante's Inferno
The IB program is more than just your run-of-the-mill abusiveness.
- It's IBusive!
by ARosy March 09, 2011

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