What is Cheese Bus?
1.
It's the slang version for a yellow school bus.
Our class is going to Washington DC, in a yellow cheese bus!
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2.
Used when something is shocking. Would be used in the same context as Jesus! In fact that is where it originated from:
Jesus->Jeebus->Cheese Bus. Also sometimes used like: Bus made entirely out of cheese!
Jane: Oh my gosh, look at that gigantic tidal wave headed right for us!
John: Cheese Bus!
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3.
a yellow school bus (with black windows)
oh man, we got to ride the cheese bus on our field trip
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