Mexican space shuttle 

a port-o-potty; port-o-let; port-o-john; portable toilet. named so because port-o-poddees are found predominantly in construction areas where Mexicans are known to frequent and work and their resemblance to a ramshackle space shuttle.

No bathrooms on this construction site, just Mexican space shuttles.

Jose was in the Mexican space shuttle for an hour, I wouldn't go in there.

That Mexican space shuttle is dirty.

Mexican space shuttle by alicia s March 15, 2008

Mexican Space Shuttle 

a porta potty, usually on a construction site

dude 1: yo man, i where can take a dump?
Dude 2: there is a mexican space shuttle over there (points to porta potty)

Mexican Space Shuttle by Sp311man November 9, 2014

Mexican Space Shuttle 

A portable enclosed toilet often found at construction sites.

I wouldn't be cought dead using a mexican space shuttle.

Mexican Space Shuttle by jdoe July 15, 2003

Mexican spaceshuttle 

were beeners try to go to space were the control room and stuff is but to white guys and blacks to it is the porta potti aka the shittier aka THE JOHN aka crapper

THE JOHN, Mexican spaceshuttle the outhouse when your on constuction site

Mexican spaceshuttle by dan weezie October 5, 2006