
If I'm going to jail, I'm killing him,
not breaking his THUMB.
The Big Bang Theory Season 9, Episode 14

You know,
Italian housewives have a rule of THUMB:
The Big Bang Theory Season 2, Episode 9

and last week, I slammed my
THUMB in the kitchen drawer.
The Big Bang Theory Season 5, Episode 14

so if you broke my right THUMB,
The Big Bang Theory Season 9, Episode 14

that's the Pasadena City Police, but if
you broke my left THUMB, that's the FBI.
The Big Bang Theory Season 9, Episode 14