Top definition
A sexual act in which an individual lies prostrate on the ground while holding a piece of plate glass directly above his or her face, and while gripping it so as to create a flat surface in relation to the ground, another individual proceeds to defecate upon it. Some cases may also call for the feces to be smeared or squashed onto the glass using the buttocks and genitals and resulting in more artistic approach to this time-honored pennsylvanian tradition, which was first introduced by the amish in the early 18th century.

(This is notably similar to the glass bottom boat, with exception to the necessity of a coffee table and indicative only of an action concerning plate glass and shitting. Usage of the term usually denotes a higher level of mobility and/or lower social/financial stature than that of "glass boat" clientele).

Also note: In the absence of any plate glass, a welder's mask is often substituted for this application.
Fearing that his wife might become suspicious of a shit-stench on his clothing, the buisinessman opted for a pittsburgh plate job while attending the whorehouse.
by CzHole May 16, 2008
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