When you do or say something that makes you seem retarded. From the Hallmark Hall of Fame movie of the same name starring Rosie O'Donnell in which she plays a "challenged" person who, surprisingly, rides the bus with her sister. What could have been a touching portrayal was ruined by the fact that she spent the majority of the movie screaming and acting like an insane monkey rather than a noble portrayal of a person with mental handicaps. So really, you are acting more like an insane monkey than a retarded person. Shortened version of Riding the Bus with My Sister.
"Don't put aluminum foil in the microwave. You are so Riding the Bus when you do that."
by The Carester September 13, 2005

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Top Definition
A synonym to being high. You can be extremely blazed, or not so much. "Riding the bus" is a good code sentence to talk about being high around people. Look up: "going to catch the bus" which means- to buy drugs.
Dude, I was riding the bus the other day and I thought I was flying!
by lalalandhaha June 24, 2010

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The process of a person jumping on a person's penis/cock
"Do you Riding the bus?" says Richard. "Yes I do" says slutty Owais.

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When one wears pants that are too short, therefore exposing their socks.
What's up with your pants? You are totally riding the bus
by 420/24/7 October 29, 2004

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Is when you pay for the fare and in the morning you wish you never had taken the ride. The act of sleeping with a prostitute or permiscous gold digger.
Man last night me and charlie were riding the bus. Hope I don't catch the clap.
by monkeyballs113 August 19, 2009

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