
...and then cuts off my THUMB?
The Big Bang Theory Season 3, Episode 13

General rule of THUMB,
Game of Thrones Season 7, Episode 3

No. But your THUMB does.
The Big Bang Theory Season 5, Episode 16

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

If I wanted to, I could wipe it out
with my THUMB like a god.
The Big Bang Theory Season 6, Episode 21