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
You know, like women,
men have a monthly hormone CYCLE.
The Big Bang Theory Season 9, Episode 21
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