An Alcoa FA-4 diesel LOCOMOTIVE
The Big Bang Theory Season 7, Episode 15
"You are running the LOCOMOTIVE."
(GASPS)
The Big Bang Theory Season 10, Episode 15
So often, on the front of the LOCOMOTIVE...
The Big Bang Theory Season 8, Episode 21
I hear LOCOMOTIVE smoke
is the second leading cause...
The Big Bang Theory Season 8, Episode 22