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2.
being really really smart and not being able to do anything with it
dora the explorer is bilingual at age 4 yet she still can't find the mountain, she's a smart idiot
by dump cake August 01, 2010
 
1.
Someone who is smart in school, but is dumb in almost all real life situations.
John got an A+ on his math test, later, he bragged about his new iPhone 5S and left his locker unlocked, and it got stolen. what a smart idiot.
by ka6802 October 29, 2013