What does Brazillian Steamboat mean?

Brazillian Steamboat meaning in Urban Dictionary

Is a prank that takes place whenever someone is within the bath and another individual comes into the bathroom and takes a nasty shit in the bathroom. Once person number one is finished making use of their shower, a lot of vapor has accumulated inside area. The smell from the toilet will then be stuck at the end level of vapor which conveniently is approximately face amount. This makes it almost impossible to exit the toilet without smelling individual number two's handywork.