The sexual act of defecating directly into partners mouth, with a non-diarrhea turd.
Dude, I just gave my girl a foot long steamboat hot dog last night and she loved it!!
by the maldo December 30, 2010
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While engaging in anal sex with your partner, ejaculate inside them. Withdraw quickly spread their bum-cheeks and get a close up of their rusty sheriff's badge.

Tell you partner you are ready then wait, as they spray out a mixture of semen and farticles all over your face.
Aye, myself and Jane performed a textbook Reverse Dutch Steamboat last night... I can still taste it.
by Ditherer78 March 13, 2016
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A girl takes a shit, melts it in her pussy and the guy eats it out.
Dude, my girl pulled a puerto rican steamboat last night. It was awesome!!!
by GoldenFalis March 16, 2009
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To dip one's balls into a vat of hot sauce; teabag and then fart into your partners face area.
She was so with it she let me give her the ole' Ricky the Dragon Steamboat.
by Jason Banton September 10, 2006
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One of the male homosexual persuasion, who is also a "top."
Hey Corey, check out that group of fudge tunnel steamboat captains going into Claire's.
by Ghetto Neematoad February 16, 2006
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A male defecates onto his female partner's face while watching and yelling at the television during a New York Rangers hockey game.
"Scott gave Crystal the Cleveland via Manhattan Steamboat right as the Rangers scored in overtime."
by ITD May 16, 2007
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The Red River Steamboat is when someone places the bottom of their cup in ketchup, then asks a restaurant worker for a refill. The worker puts his hand around the bottom of the ketchup--OH NO!!! Ketchup on his hand!
It took forever to get our food, so we got the waitress back by using the ol' Red River Steamboat.
by Hank Gerald March 9, 2005
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