mental giant

mental giant

An extremely intelligent person. Typically used sarcastically. Some mental giant thought it would be a good idea to connect the wires in reverse order. It doesn't take a mental giant to realize that this will be bad for business.
See also: giant, mental
Farlex Dictionary of Idioms.

mental giant

n. a genius. I’m no mental giant, but I do know trouble when I see it.
See also: giant, mental
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • a bright spark
  • (Is) that everything?
  • bright idea
  • a bright idea
  • idiot
  • babbling idiot
  • couldn't happen to a nicer (person)
  • the best thing since sliced pan
  • a (real) winner
  • barrel of fun
References in periodicals archive
Again, you don't have to be a mental giant or know higher math to understand what is happening with numbers.
Mister Mental Giant broke out his handy-dandy X-acto knife, painfully carved the slug out of his own leg, and sold it to the shooter for $200.
In short, you don't have to devise exercise routines that only a mental giant could comprehend.
Wrapping up an armed robbery of his fellow passengers on a Rio de Janeiro bus, mental giant Jose Roberto Rocha stuffed about $800 in his pockets, stuck his pistol in his pants and directed the driver to drop him off at a public plaza.
Our mental giant -- a labor relations teacher at a local college -- was in silver bracelets before the champagne went flat.
The 18th century saw a remarkable intellectual flowering called The Scottish Enlightenment, which produced such mental giants as the philosopher David Hume, the economic thinker Adam Smith and the inventor James Watt.
Although no mental giants, they are not shallow, and there is something charming about the delight they take in exploring one another.
The intended victim was pumping gasoline into his car when the mental giants approached and made their demand.
Of 50 state governors, not too many of whom qualify as mental giants, only Jesse Ventura could be conned into the broadcast booth, where he made a bigger fool of himself than he has been able to make in the governor's mansion, and he's done quite well in St.
And the lesser developed (lizard's are mental giants by comparison) primitive brain.