
...and engage in CASUAL physical contact...
The Big Bang Theory Season 6, Episode 1

Of course, the CASUAL mention
of a Dothraki horde,
Game of Thrones Season 7, Episode 2

No, I'm all done with CASUAL sex.
The Big Bang Theory Season 2, Episode 2

...to provide Amy with conversation
and CASUAL physical contact.
The Big Bang Theory Season 6, Episode 1

Well, it's very CASUAL. No dress code or...
The Big Bang Theory Season 2, Episode 10