You'd have to drive a RAILROAD spike into
his brain for me to beat him at checkers.
The Big Bang Theory Season 2, Episode 11
I'm gonna be working on the RAILROAD
all the livelong day.
The Big Bang Theory Season 10, Episode 15
...um, I embarked
on a RAILROAD journey of healing...
The Big Bang Theory Season 8, Episode 1
down by the RAILROAD tracks."
Breaking Bad Season 2, Episode 12
Well, Sheldon was going on and on
about time zones and RAILROAD schedules,
The Big Bang Theory Season 9, Episode 16