
I'm scrupulous about my HYGIENE,
I regularly disinfect my hands...
The Big Bang Theory Season 3, Episode 15

I must take responsibility. I had to stop
for feminine HYGIENE supplies.
The Big Bang Theory Season 4, Episode 3

I also have an idea for a bulk,
mail-order feminine HYGIENE company.
The Big Bang Theory Season 1, Episode 4

Third World HYGIENE.
The Big Bang Theory Season 5, Episode 1

And after that I'll make up my own rules
of oral HYGIENE...
The Big Bang Theory Season 6, Episode 21