moist steamboat

When you get busy in a confined space, with little to no ventilation.

"Man, fucking in that small car was like a moist steamboat"

by ch0da1920 September 19, 2013

Steamboat

Act of jiggling head left and right between an older woman's breasts. See Motorboating

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

Steamboat

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 8, 2004

Puerto Rican Steamboat

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

Steamboat Springs

a shitty ski town where it is always raining and pissing off all the locals. essentially, the town is fucked. in addition, the town is choc full of stoned ass wipes who want to be black.

Wow this town sucks a fat left nut.

Oh it must be a Steamboat Springs.

by lorenzo canseco October 23, 2011

Russian Steamboat

An unusual party trick which displays a girl who is able to smoke a blunt(usually only inhaling) through her vagina.

guy 1: Man, so that chick Olga did a russian steamboat at the party last night!
guy 2: no way man! thats such a waste of weed!

by brhoedsobad October 13, 2010

Steamboat

Inhaling marijuana smoke trapped in a toilet paper roll or similar device.

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.

by MoonCricket August 23, 2005