
You've convinced me, maybe we should
sneak in and SHAMPOO her carpet.
The Big Bang Theory Season 1, Episode 2

Dandruff SHAMPOO.
The Big Bang Theory Season 4, Episode 1

It's Darth Vader SHAMPOO.
The Big Bang Theory Season 1, Episode 1

for peeing
in his SHAMPOO bottle...
The Big Bang Theory Season 12, Episode 4

...and my new dandruff SHAMPOO
doesn't smell like tar.
The Big Bang Theory Season 6, Episode 6