
Oh, I watched a video
of the hagfish producing MUCUS,
The Big Bang Theory Season 9, Episode 9

"MUCUS plug" again.
The Big Bang Theory Season 11, Episode 16

A hagfish can produce enough MUCUS
to fill a bucket in a minute.
The Big Bang Theory Season 9, Episode 9

Boy, if good ideas came out of your brain
the way MUCUS comes out of your nose,
The Big Bang Theory Season 10, Episode 19