Intelligence,
ruthless attention to HYGIENE...
The Big Bang Theory Season 2, Episode 13
Third World HYGIENE.
The Big Bang Theory Season 5, Episode 1
I'm scrupulous about my HYGIENE,
I regularly disinfect my hands...
The Big Bang Theory Season 3, Episode 15
I also have an idea for a bulk,
mail-order feminine HYGIENE company.
The Big Bang Theory Season 1, Episode 4
I let you buy
feminine HYGIENE products
The Big Bang Theory Season 7, Episode 2