
Okay, this is SILLY.
The Big Bang Theory Season 11, Episode 11

How can you miss a game
you've never played before, SILLY?
The Big Bang Theory Season 9, Episode 9

and it'’s SILLY
to hold a grudge.
The Big Bang Theory Season 12, Episode 4

You know, I'm just being SILLY. I...
The Big Bang Theory Season 9, Episode 10

Okay, Amy, you're being SILLY.
The Big Bang Theory Season 4, Episode 22