
Oh. A CLEVER, albeit obsolete, euphemism
for insufficient blood flow...
The Big Bang Theory Season 3, Episode 2

Oh, you think you're so CLEVER.
The Big Bang Theory Season 3, Episode 1

So CLEVER.
Game of Thrones Season 2, Episode 5

I'll assume
it was something CLEVER.
Game of Thrones Season 7, Episode 1

As a CLEVER man once told me,
Game of Thrones Season 6, Episode 4