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Someone who has a ugly face that is only worthy of sitting in the backseat where no one can see them. Works exceptionally well when in a two seater and they are tucked in the back.
Friend 1: "Hey Erica said she wants to ride shotgun"

Friend 2: "Well not in my car she got that backseat face"

Both get a good laugh "hahahaha"
by youngdre May 22, 2008
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