Top Definition
The act of releasing one's own excriment while in a vehicle traveling. Perhaps in a bucket, a bag, or right on the seat itself. Usually only to be thrown out onto the highway, aimed at another vehicle.
Popalopadopolis- "On my road trip to Florida I had to drop a few roadsteamers."
by Snokone April 21, 2008
12 Words related to Roadsteamer

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