
But in the interest of full disclosure,
I was once on a BUS...
The Big Bang Theory Season 4, Episode 21

People move away from her on the BUS.
The Big Bang Theory Season 2, Episode 12

But just to be clear, you mean a party BUS
with booze and music, right?
The Big Bang Theory Season 9, Episode 13

but the BUS kept stopping
for other people to get on it.
The Big Bang Theory Season 5, Episode 15

It's like the movie Speed,
but instead of a BUS,
The Big Bang Theory Season 12, Episode 9