Octimoron 

Used when describing and individual that is 8 different kinds of stupid.

That fool is an octimoron.

Octimoron by THEYCALLMESAUL August 7, 2017

Outmoroned 

Outdone in one's stupidity.

AOL may have been outmoroned by YouTube and Yahoo! Answers as of late but never write off the original idiot factory!

Outmoroned by GrassyKnowledge February 11, 2009

OxiMoron

a person who buys anything Billy Mays tells him/her to

That OxiMoron bought a trailer load of Mighty Putty and Kaboom.

OxiMoron by soundsoktome October 17, 2009