A vague, and often obscured view of the mound and inner hipbones that's created when a woman under 120lbs lies down in a bikini. AKA, a superficialasset.
When two lesbains are 69'ing and two men are having anal sex with them, thus looking like a bridge connecting them.
Shaquala: Hey, Donel me and three a my friends last night were doin the peace bridge.
Donel: ???
Shaquala: I was eatin her as i was takin it in the ass as she was eatin me takin it in the ass.