Instead of placing one's face between a female's breasts, an individual instead elects to place his or her face between a woman's ass cheeks and performs the same actions one would do while motorboating.
Chuck: Hey Zach, what's that brown smudge on your nose?
Zach: Haha, I was just steamboating my girlfriend a few minutes ago and I guess I forgot to towel off
By Gwenette
Steamboat
Over the years the original name has faded. More and more people today identify such devices as a steamroller.
According to A Child's Garden of Grass: The Official Handbook for Marijuana Users (1969, Jack S. Margolis & Richard Clorfene) "A steamboat is a combination of a pipe and a joint merging the best of both into a powerful tool of good."
While a true pipe only has two holes (a bowl and mouthpiece), the steamboat has three (a bowl/joint holder, mouthpiece, and a rear hole nearest to the bowl).
To use a steamboat one covers the rear hole, puffs a few times upon the piece to fill the chamber, and then uncovers the rear hole to puff once more - inhaling the full contents of the chamber.
"Some inveterate critics may claim that these are not Steamboats, but pipes. They're not. They're Steamboats. A pipe has two holes, a steamboat three or more."
- A Child's Garden of Grass
While suffering from acute flatulence, stick your ass in a girls breasts and fart. Related to the motorboat. Not to be confused with the hot carl or the cleveland steamer.
When you are wearing a turtleneck sweater and you fart, the fart gasses will travel up your pants, up your sweater, and exit through the turtle-neck opening at the top of your shirt. The turtle neck acts similar to a funnel on a steamboat (aka steamship, steamer).
After finishing a two-pound burrito and leaving the restaurant in his turtleneck, Javier was farting so much he resembled a paddle steamboat traveling down the Mississippi.
By Latashia
Steamboated
The term for when you've consumed that much alcohol you think you can actually see Bob Marley in a hula skirt singing 'Baby it's cold outside'. The highest state of intoxication.
Jo: I went to a house party last night and necked a bottle of tequila. I was steamboated.
Bob: Good Times.
Jo: Yeah, til I thought my boyfriend was getting off with the wall and i battered it, and broke four fingers.
Bob: Bad times.