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Smart and dumb at the same time
"Jesse is so smumb - she just got her master's degree, but has the common sense of a 10 year old kid
by mastertrainer1978 May 26, 2010
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A word used to describe a dickhead who is smart but also dumb to some extent
"You know that kid Dan? He's chill but he's smumb"
by SoapWasGod August 16, 2017
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