1 definition by Mr. Oxford Comma

They are pants one wears over one's regular pants when one sits on bus seats that other people have previously sat on.

This term was first seen on an episode of The Big Bang Theory titled "The Bus Pants Utilization".
Sheldon: All right, I suppose I'll go put on my bus pants.
Leonard: What the hell are bus pants?
Sheldon: They are pants one wears over one's regular pants when one sits on bus seats that other people have previously sat on.
by Mr. Oxford Comma January 7, 2011
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