
I let you buy
feminine HYGIENE products
The Big Bang Theory Season 7, Episode 2

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

Intelligence,
ruthless attention to HYGIENE...
The Big Bang Theory Season 2, Episode 13

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

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