Phi Gam fingertrap
Originating at Hiram College, the members of Phi Gamma Epsilon would sometimes have a threesome with a girl. The men would pierce the woman from opposite ends (see Eifel Tower for an example) and push their penises into the woman as far as they could and then give each other a high five.
"Dude, me and my VP gave that bitch the Phi Gam fingertrap and then nutted on her face and back"