A term used to reference a toilet, in the manner of porcelain pony. The term is most often employed in reference to the use thereof.
"Man, I hope this class is over soon; I gotta ride the porcelain bus like crazy!"
by Bob Trees April 30, 2006
2 more definitions
Name given to the toilet when vomiting, used in reference to holding the seat while spewing in the same manner as you would hold a bus steering wheel. Not to be confused with the porcelain pony as quoted above
Shit, I had a few too many jagers, I think i may need to drive the porcelain bus
by timb082 February 04, 2009
when your drunk and ready to vomit you hang on to the toilet with both hands.
I had to drive the "porcelain bus," last night.
by Ima.AssOe June 21, 2014