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1.
When you take a dump while floating on water, (river, lake, pond, pool) and you throw the turd to the person across from you in another raft and it sticks
Jeff- "John wtf are your doing"
John- "Taking a shit"
Jeff-"ha ha, better not stanley steamboat me"
John- John shits, picks it up throws it at Jeff's raft and it sticks, "You just got stanley steamboated"

Jeff-"i hate when i get stanley steamboated"
by Catlin Ball April 14, 2010