
Many of them on PURPOSE.
The Big Bang Theory Season 10, Episode 21

What is the PURPOSE of a toy?
The Big Bang Theory Season 5, Episode 20

Its size is completely disproportionate
to its PURPOSE.
The Big Bang Theory Season 4, Episode 4

Like I do it on PURPOSE?
Breaking Bad Season 2, Episode 12

However, pain has an evolutionary PURPOSE.
The Big Bang Theory Season 9, Episode 15