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A penis that is not quite at full Chubb status but stiffness is apparent. Also a way of referencing the penis as a piece of meat. Hence the word"Porter".
Amy's not that hot, but that ass is giving me a straight portachub.

The disappointment on Stephanie's face was apparent when I couldn't get hard and I could only serve up the portachub.....
by Rightnerface October 28, 2016
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