It's French for "good SHOWER."
The Big Bang Theory Season 1, Episode 1
Oh, I did spend a lot of my SHOWER time
with Lieutenant Uhura.
The Big Bang Theory Season 6, Episode 18
LEONARD:
I can't hear you. I'm in the SHOWER.
The Big Bang Theory Season 4, Episode 21
Hey! She's mine,
take a cold SHOWER, Grandpa.
The Big Bang Theory Season 10, Episode 1
Fine. Can I at least
SHOWER first?
The Big Bang Theory Season 7, Episode 16