Coins lodged in body parts
is not a SOURCE of amusement.
The Big Bang Theory Season 5, Episode 12
Leonard, it is a SOURCE of great pain
to me and my family...
The Big Bang Theory Season 4, Episode 18
So to begin with, what are we saying
is the SOURCE of this money?
Breaking Bad Season 3, Episode 11
...caused by relative motion between
the SOURCE of the wave and the observer.
The Big Bang Theory Season 1, Episode 6
I know that money can
be a SOURCE of friction
The Big Bang Theory Season 12, Episode 3