Sheldon, this beaker used
to contain cerebral spinal FLUID
The Big Bang Theory Season 5, Episode 16
It's my favorite
pink FLUID,
The Big Bang Theory Season 5, Episode 23
Just-- It's a FLUID situation.
Breaking Bad Season 5, Episode 12
They make up a non-Newtonian FLUID
which is liquid...
The Big Bang Theory Season 2, Episode 3
in FLUID mechanics...
Can you imagine them preparing for a job?
Money Heist Season 3, Episode 2