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A serious feeling of stupidity or ignorance. Often occurs because of a child with disabilities getting the correct answer while you have the wrong one. Derived from the English-ajimbo, or, hey jimbo! or as a child with a penile curve likes to say, AYJYIMBAW!
Dude, it was jimbosonic when that kid with down's syndrome knew that washington lived at Mt. Vernon and I didn't..

Whoah, it's such a jimbosonic feeling to talk to jimbo.
by smartass1234 April 07, 2009
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