(CHUCKLES) Babies are cute,
but they're DUMB.
The Big Bang Theory Season 10, Episode 20
Nah, you're right, that's DUMB.
The Big Bang Theory Season 9, Episode 12
...looks DUMB, take your pick.
The Big Bang Theory Season 6, Episode 2
I'm not crazy about you
calling our baby DUMB.
The Big Bang Theory Season 10, Episode 20
Oh, i-it's just this
DUMB crystal wand
The Big Bang Theory Season 12, Episode 2