One that mounts another one's chest and squats in the manor of shitting on said chest, before preforming sexual intercourse....

The female version of this would be called Shitty Taa Taa's where man uses the shit from his chest as a personal lubricant for titty fucking the female and finishing with the female giving him a blow job.
Hey babe, "Can I get a Steamboat Jimbo?" This can only be used by someone that already knows what a Steamboat Jimbo is... If not you can refer to the definition above!!
by JAFRICIAN September 28, 2022
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A New England steam boat is when multiple people shit and don't flush, it continues until its full.
The plumbers came inside and New England steamboat my toilet.
by Lil_Hawk April 21, 2022
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When you pry open the hole at the tip of the penis. Scoop the fluid out with a meth pipe and smoke it.
The wife is gonna pull a texas steamboat after dinner on Friday.
by Giggles the clown May 2, 2023
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A man who is ridiculously attractive. In addition, the word used as a verb can mean to have steamy sex.
He is a steamboat. (noun)
I’m going to steamboat you tonight. (verb)
by BootsMcGee July 11, 2019
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Verb: steamboat; 3rd person present: steamboats; past tense: steamboated; gerund or past participle: steamboating

Coined by a certain group of people who make sprite artwork on a gaming software called BYOND, the act of steamboating refers to the complete desaturation of photography and digital images, resulting in a grayscale version of the original image. The term's origin derives from the style of black and white animated films of the 1920s, most notably, Walt Disney's 'Steamboat Willy', a 1928 animated short film that inspired the usage of the word, 'Steamboating'"
Person A: Can you help me steamboat these images for a 1920s-era themed web page?
Person B: Sure.
by Ultimate Fluff November 8, 2019
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To place one’s head between a beautiful pair of boobs and simply puff out your hot breath.
“I’m gonna steam boat you”
Her: motorboat? It’s called motorboat.
Her: did you just puff air on my boobs?!
“Steamboat”
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When your cannabis pipe is clogged with too much resin and you clean it by smoking the resin using a puffing method.
"My new glass pipe is finally full of resin, hand me a lighter so I can steamboat it clean."
by Undead Meathead April 10, 2017
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