when ur book smart but have no common knowledge
dumb smart “when you ace your chemistry test but you think mount everest is in new zealand”
by ceoofdumbsmart March 12, 2020
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Someone who thinks they know a lot, and tries to talk like they're smart, but when engaging in debates, they never prove their point.
Fundo thought he was engaging in intellectual conversation with the smartest lady in the world, until he found out she was only dumb smart.
by authOOr June 26, 2006
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1.) the act of smartly being dumb
2.) finding loopholes
3.) being a man
a female on facebook posts a status "boys are stoopid" a male friend quickly counters with a dim-witted comment "Well good thing I'm a man and not a boy."

this is an example of being Dumb Smart.
by CtrlAltDown November 14, 2010
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when someone is seemingly smart but contradicts that belief by their dumb actions and choices of words

"it's a thing" - Pewdiepie 2020
"I keep telling you guys it's a thing. I'm smart dumb, look it up. uuh If it's not a thing, I should make it a thing" -Pewdiepie 2020
by screaming_leeks June 29, 2020
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That guy who doesn't know what he's talking about but tries to sound like he does. Not very bright, doesn't make any sense (though he thinks he's really profound, on to something, etc.). He's not lying to you, he simply doesn't know any better, but will insist he's right, which makes him not worth the trouble of setting straight. Yes, THAT guy.

A very on-point term (coined by comedian Katt Williams in The Pimp Chronicles pt 1), because we all know one...or more.
Examples of smart dumb niggas would be:
-the chick who insists her Infiniti Q45 is front wheel drive when it's really rear drive
-the guy who spells the word "ludicrous" like the name of the rapper Ludacris
-most people who say overstand or conversate
-one who knows the Bible like the palm of his hand but argues the Earth is only 6000 years old
-most conspiracy theorists

You know a smart dumb nigga when you see one basically.
by Kuahmel December 26, 2009
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a nigga who’s mainly known for being a smart or intellectual person but makes dumb decisions
Person 1: Aye bruh I’m finna go tap shawty without a condom
Person 2: Nigga you too smart to be doing shit like this you a Smart-Dumb Nigga
by EmperorRei June 4, 2020
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The amazing number of 18-24 year old dumb girls with smart phones that will instantly take their clothes off and take pictures of themselves in their bathroom and bedroom mirrors while their clueless father is downstairs watching home videos of when she was 3 and learning how to jump rope.
Guy A) Dude...why are are there suddenly so many pictures of hot girl next door types all over internet. Either showing off their tits, or licking each others tits?

Guy B) Dumb Girls with Smart Phones, dude. It's awesome.
by Comics Nut June 12, 2011
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