Another word for semen. Also used by the rapper Pit Bull in his song Hotel Room Service: "oh, you're the healthy type, well, here goes some egg whites."
Girl 1: Remember that nasty scene from American Pie where she spits his egg whites into the water glass after giving him a BJ? SICK.
Girl 2: Yeah. But I've totally done it.
Girl 1: Yeah, me too. It's actually way more convenient than running to the bathroom to spit it out.
Girl 2: For sure. Gotta have that water glass on the nightstand!