Steamboat Hot Dog 

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!!

Steamboat Hot Dog by the maldo December 30, 2009

steamboat'n 

The act of taking a crap in steaming hot water. Ie: a hot tub or bath.

I wouldn't go in there, somebody was steamboat'n in that hot tub.

steamboat'n by Gbigdog1 January 10, 2015

Steamboat Billy 

A sex act involving a batman costume and a goat. Originally invented by William Moats.

Billy was surprised when Jordan gave him a Steamboat Billy.

Steamboat Billy by cjlethal August 7, 2022

Steamboat Museum 

Marks an age where people have become sexual mature to admire the people who they are sexually attracted too.

We are off to the steamboat museum!

Steamboat Museum by Oobegal May 1, 2011

steamboat willie 

when a person takes a shit on their partner's chest and smears it all the way down their body, while smoking a cigar (yelling choo-choo is optional)

Boyfriend: Hey babe, i'm kinda horny lets try a steamboat willie
Girlfriend: Okay i'll get the cubans

steamboat willie by BonerCoveredInShit September 10, 2009

steamboat willy 

A variation of a "Wet Willy" but where emphasis in the "Wet Willy" is placed upon saliva, the emphasis in the Steamboat variation is placed upon ass sweat.

"Hey Brian, don't Steamboat Willy me while I tie my shoe."
-Michael Norman

steamboat willy by Captain Hammer January 11, 2008

steamboat willie 

During the act of having anal sex with a woman while she has her period, one reaches under her to find the string of the tampon and gently tugs at it shouting, "Toot toot, Steamboat Willie".

"Dude, my girl is on the rag, so I guess I'll just have to play Steamboat Willie"

steamboat willie by SpartanAOD January 11, 2009