smart dummy 

A person that is smart and intelligent but going about doing things the wrong way

You are a smart dummy the way you just explain that to me . Or that was a smart dummy thing you just did right there's few minutes ago.

smart dummy by Old Ancient Divine barrier January 20, 2020

dummy smart 

someone who is really intelligent

I passed that test bro I'm dummy smart

dummy smart by ur dad's prostate April 16, 2019