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A penis that features various textures, colours, and thicknesses, so that it seems like various parts of different penises were sewn together.
My boyfriend has a weird frankenstein penis and it freaks me out every time I need to go down.
by MrEscapee July 30, 2016
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2
A penis that has been enlarged to unnatural sizes through the use of various devices and medications.
Last night I was with this guy who had a huge frankenstein penis.
by Jokerguy November 16, 2010
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