A menage á trois that only involves three people. The last participant to climax has to purchase cheesesteaks for all involved.
Jeff is on his way to Pat's, I guess he lost out on the Philly Phoursome.
by The kegerators March 30, 2011
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guarantee for lauren, emma, payton and mari to not let the superior phoursome die
never
ever
the phoursome legally has to continue until at least 2022 and is then up for extension
by satellitednp July 15, 2019
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