
He came running at me,
this DUMB high-born lad,
Game of Thrones Season 1, Episode 3

And Leonard just stood
there with a big, DUMB
smile on his face,
The Big Bang Theory Season 12, Episode 12

Hey, don't DUMB this down
for me.
The Big Bang Theory Season 12, Episode 5

Set phasers to DUMB, right?
(chuckles)
The Big Bang Theory Season 5, Episode 20

I stopped that, it was DUMB.
The Big Bang Theory Season 10, Episode 22