a Helmet of Confusion spell
on Billy the Kid's COWBOY hat?
The Big Bang Theory Season 5, Episode 10
We're not wearing
COWBOY hats, Sheldon.
The Big Bang Theory Season 5, Episode 10
I can't believe
you bought a red COWBOY hat.
The Big Bang Theory Season 3, Episode 1
♪ I'm a COWBOY ♪
The Big Bang Theory Season 5, Episode 18
That man was clearly a COWBOY...
The Big Bang Theory Season 6, Episode 21