1 definition by Mr. Snap

Top Definition
To defecate into a small plastic baggie, tie the bag shut with rope or string, and twirl it in circles hitting your friend in the face several times. Usually done in a jovial or festive manner.
After Jill announced she was pregnant, all her friends playfully steambagged her until everyone was exhausted and covered with corn niblets.
by Mr. Snap November 01, 2009

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