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2.
What some workers on a jobsite call the portable toilets (Port-a-Lav, Port-a-John, PortaPotty or what ever company name they go by in your region)
Overheard on a jobsite...Hey, look at those guys coming out of the Mexican Spaceship with their hard hat on...they look like astronauts of some sort...besides, who wears a hard hat to the toilet anyway?
by G.Industries June 18, 2006
 
1.
Construction site bathroom, also known as a "blue house" or port-a-john.
The laborer had too many tacos the nite before so he relieved himself in the Mexican Spaceship.
by Boss June 18, 2006