steamboating 

having sex with a girl doggy-style in the pool, in deep enough water that she has to keep paddling to stay afloat.

"I was in the pool with Catherine, and we ended up steamboating! The huffing and puffing when she ran out of breath only made it better!"

steamboating by Sinker23 May 28, 2006

steamboating 

Like motor-boating... but with an asshole.

Bro, I was totally steamboating that girl all last night *high five*

steamboating by x3igh7 September 11, 2011

Steamboating 

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.

I just walked in on Todd steamboating Heather and I’ve never smelled such dank shit before!

Steamboating by Bert Durffle March 27, 2019

Dutch steamboating 

The act of anal sex undertaken whilst spouting left wing libertarian values whilst actually being secretly right wing

"Oh sven do pack in that dutch steamboating its so transparent"

Dutch steamboating by Oltcit March 19, 2009

steam-boating 

the act of motor boating your anus on a females breast and letting out subtle, noiseless farts.

"hey Johnathan, i bet you wont ask that lady is you could steam-boat her."
"whats steam-boating"
"you know farting on her tits"
"oh, well here i go"

steam-boating by Racial_slut January 26, 2018

Steam Boating

A slow and deliberate face to breast oscillating motion.

Mark Twain is slowly steam boating his way through the golden girls.

Steam Boating by Samuel Clams. July 12, 2014