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Can be spelt as explanobrag or explanabrag. To explanobrag is when you are explaining a certain subject and use it as an way to brag. Originates from the TV show, "Community College".
Bruce (1): G'day Bruce. How do you use that thing over there?

Bruce (2): Well Bruce, you turn that windy thing then jam the thingamabob into the whatchamacallit, calibrate the whojam and press the squodge. Then it makes that stuff. I'm the only one who knows how to use it.

Bruce(3): Why does he always explanobrag?

Fred: Because he can.
by TikkaTakka February 20, 2011
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