
...and discuss why Austria was an archduchy
and not just a REGULAR duchy?
The Big Bang Theory Season 8, Episode 21

No, REGULAR mean,
like a REGULAR lion.
The Big Bang Theory Season 11, Episode 15

Yeah, it's a REGULAR Manhattan Project.
The Big Bang Theory Season 2, Episode 22

What? This is my REGULAR face.
The Big Bang Theory Season 12, Episode 16

A REGULAR pea,
The Big Bang Theory Season 5, Episode 6