First used on a Sports Center commercial- Paul Pierce 34, Ray Allen 20, Kevin Garnett 5, they play for the Boston Celtics aka the greatest team ever assembled... also BostonThreeParty is a player on PSN that habitualy rapes kids until they stop playing
by Queenies 4 lyfe nikka February 26, 2008
When three guys screw the same girl by having her straddle the first while he is sitting in a chair, the other gets her from the back, and the third stands on the sides of the chair so she can suck his dick.
My friends and I couldn't figure out how we could all screw this hot girl so we decided to run the boston three party on her!
by Tyler, Matt, and Jeremy February 13, 2008
buy the domain for your recipe site