
To quote Han Solo,
"I know""
The Big Bang Theory Season 7, Episode 11

Bongo SOLO.
The Big Bang Theory Season 5, Episode 18

It's interesting but isn't ventriloquism
by definition a SOLO activity?
The Big Bang Theory Season 2, Episode 13

It's a boy-girl party,
this Flash runs SOLO.
The Big Bang Theory Season 1, Episode 6

You know, maybe I should go SOLO.
The Big Bang Theory Season 9, Episode 10