Steamboat

[Sarah]

A boat or vessel propelled by steam power; -- generally used ofriver or coasting craft, as distinguished from ocean steamers.

[Sarah]

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).

[Sarah]

To get completely, hopelessly and utterly drunk or off

[Oralee]

A boat that is propelled by a steam engine, especially (in the US) a paddle-wheel craft of a type used on rivers in the 19th century.

[Dave Paprocki]

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].

[Kai]

The act of taking a hit of weed then [going under] water and blowing out [all the smoke]. The bubbles will then pop at the surface of the water and smoke will come out resembeling a [steamboat].