The act of exhaling clouds of loud in between some fat ass thot titties, thus creating the Mount St. Helen’s Effect of marijuana smoke gently escaping the crevous/air pocket formed between two pushed-together breasts.
by Bert Durffle March 28, 2019
This is a combination of a Cleveland Steamer and a Motorboat. It is when a man (or woman) excretes feces on a woman's breasts and then Motorboats her.
Man 1: Dude my friend Steamboated his lady last night.
Man 2: NO WAY! That is the Grossest thing I've heard of!!
Man 2: NO WAY! That is the Grossest thing I've heard of!!
by MRuka07 October 29, 2010
Steamboating is a sex act that involves farting into a plastic bag and then putting the fart-filled plastic bag over your partner's face to let them inhale your farts.
Kelly: Josh wants me to steamboat him. Should I?
Jenn: What's steamboating?
Kelly: Um it's kinda kinky... it's when you fart into a plastic bag and then let your partner smell it.
Jenn: Oh! Ben and I do it all the time! It really turns him on!
Kelly: Guess I should too then...
Jenn: You should! It's the best
Jenn: What's steamboating?
Kelly: Um it's kinda kinky... it's when you fart into a plastic bag and then let your partner smell it.
Jenn: Oh! Ben and I do it all the time! It really turns him on!
Kelly: Guess I should too then...
Jenn: You should! It's the best
by Crepescular Monty November 17, 2010
Jay picked up Ethle from the retirement castle, took her to a nice steak dinner, and got to steamboat her flapjacks.
by Andysue28 January 15, 2015
When a man or woman straddles their partner and has a bowel movement on their chest or stomach. This is referred to as the steamboat because it was said to have originally happened in an outdoor winter setting, which caused the fecal matter to give off steam once released.
Billy and Cindy wanted to take their relationship to the next level. Boy was Cindy surprised when Billy gave her a steamboat while sitting next to her parents hot tub.
by HDC October 09, 2004
Luke: Hey, get that toilet paper roll out of the garbage for me.
Suzzy: What for .. ?
Luke: Trust me ~ you'll love this. I'm gonna give u a steamboat.
Suzzy: What for .. ?
Luke: Trust me ~ you'll love this. I'm gonna give u a steamboat.
by MoonCricket July 23, 2005
An incredibly fat doobie, rolled densely with medicinal cannabis. A steamboat Jackson burns slowly and evenly throughout.
by Biggest Aristotle January 04, 2012