Child Genius 

A very stupid child, with absolutely no hope of making anything substantial out of their life.
Their parents refer to them as a "child genius" to cover their pain and anger at their child's stupidity.

Christine: Hey, can I enter my son Job for the youngster intelligence challenge?

Wasteman who organises the competition: Sure, what's his IQ?

Christine: Oh, he doesn't have one, he's a real child genius.

Child Genius by childgenius April 15, 2009

not-genius 

noun. An individual, group or corporation lacking basic common sense or "smarts". At least 2 sandwiches and a pickle short of a picnic.

"Blimey, Jason really is a not-genius regarding the management of Hammond Northsore Regional Airport."

not-genius by sharrypops November 21, 2009

stroke of genius 

When you get a handjob from a smart girl

Last night i got a stroke of genius from the girl in my chem lab.

stroke of genius by bananahandjob July 4, 2021

Stable Genius

A Useful Idiot

Donald Trump is the most stable genius the Russians have ever had.

Stable Genius by rastaX June 15, 2019

false genius 

Someone who claims to be smart but in the end is about as clever as the gum under your shoe.

Dave claimed to have a high IQ, but in the end he was a False Genius.

false genius by MaximilleDeLis April 15, 2014

Stable Genius

A Classic Oxymoron.

Trump claims he is a stable genius while also claiming that Mexico will pay for his wall...

Stable Genius by Wordsrimportant January 7, 2018

fuckin' genius 

A really dumb, stupid, inept, and asinine person.

Jim: "What time is it, man?"

Billy: "Look at the watch on yer wrist, ya fuckin' genius."

fuckin' genius by dookeyboy November 22, 2010