I'll use that one to LIGHTEN the mood
after my entire class fails the midterm.
The Big Bang Theory Season 8, Episode 2
I was trying
to LIGHTEN the mood.
The Big Bang Theory Season 12, Episode 10
He entrusts some small matters to us
that we might LIGHTEN the load.
Game of Thrones Season 1, Episode 3
I'm just... I'm trying
to LIGHTEN the mood.
The Big Bang Theory Season 7, Episode 17
That's a joke, Brandon.
Lighten up.
Breaking Bad Season 2, Episode 8