The trick to pancakes
is bacon GREASE.
The Big Bang Theory Season 5, Episode 6
who isn't made of GREASE or pie.
The Big Bang Theory Season 7, Episode 1
Squeaky wheel gets the GREASE?
The Big Bang Theory Season 8, Episode 18
Look, I have GREASE smudge on my hand
and I'm okay with it.
The Big Bang Theory Season 10, Episode 15
I sat there the whole time
that we were watching "Grease,"
The Big Bang Theory Season 5, Episode 17