
A BUTTER churn.
The Big Bang Theory Season 11, Episode 11

It's okay. Now, I don't need BUTTER.
The Big Bang Theory Season 10, Episode 20

Can you get the BUTTER, please?
The Big Bang Theory Season 7, Episode 19

My ability to think
is my bread and BUTTER.
The Big Bang Theory Season 4, Episode 22

BUTTER is an excellent lubricant
for your rectal exam.
The Big Bang Theory Season 5, Episode 17