1 definition by theoncomingstorm version 11

Top Definition
The moment when, in the British TV show Doctor Who, a new person first enters the TARDIS and realizes it is bigger on the inside. A BOIM stands for a Bigger On the Inside Moment. BOIM's are usually accompanied by running around the TARDIS, and gaping.
"Whoa did you see Rory's BOIM last saturday?"
"Yeah it was hilarious!"
by theoncomingstorm version 11 September 30, 2011

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