1. A farewell mark or to say good-bye. Created by Penn State University CSE 271 students in Fall of 2006 after a Professor who's accent was so hysterical, overused the word "Piecewise Function"

2. In mathematics, a piecewise-defined function (also called a piecewise function) is a function whose definition is dependent on the value of the independent variable.
Piecewise Rob I gotta take a shit.
by piecewisemonkay July 30, 2009

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