
She told me
that I could open it only ONCE.
Money Heist Season 1, Episode 7

I vomited on a girl ONCE
in the middle of the act.
Game of Thrones Season 3, Episode 8

And now, ONCE again,
Vikings Season 1, Episode 8

Which he only did ONCE.
The Big Bang Theory Season 10, Episode 24

we only went on four dates,
hugged twice, kissed ONCE,
The Big Bang Theory Season 7, Episode 19