
Well, he used a PERIOD
instead of a question mark,
The Big Bang Theory Season 9, Episode 16

Period.
Breaking Bad Season 2, Episode 7

Other than waiting out
the exponential growth PERIOD...
The Big Bang Theory Season 4, Episode 23

It may not cover a PERIOD
lasting longer than a year.
Game of Thrones Season 4, Episode 10

Well, maybe my male cycle
synced up with Raj's actual PERIOD.
The Big Bang Theory Season 9, Episode 21