Double simultaneous vaginal penetration by two males on one female. A variation is the Black and White Cookie where one male is black, the other white and the female of any race.
Yo, me and Ice cruised the local bar the other night and picked up a honey. We went back to my place and gave her a Double Stuff, Black and White Cookie.
Now the bitch walks funny and has a speech impediment. Naw whut I'm sayin?