I clearly woke you up
in the middle of a REM CYCLE.
The Big Bang Theory Season 1, Episode 10
Well, maybe my male CYCLE
synced up with Raj's actual period.
The Big Bang Theory Season 9, Episode 21
Oh, yes, you are. I track your CYCLE.
The Big Bang Theory Season 10, Episode 8
Where are you in your menstrual CYCLE?
The Big Bang Theory Season 2, Episode 9
Four is still releasing the fabric softener
too early in the CYCLE.
The Big Bang Theory Season 2, Episode 1