Doublechin

6 clues
Dieter's bane
Stunt man's woe?
Unflattering facial feature
Chewing gum could help prevent one
It's almost never found in cheesecake
Facial feature that can be eliminated by cosmetic surgery
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Abnerdoubleday
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Ascreechinghalt
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Beeching
Begonechina
Bodydouble
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Czechingaccount
Dailydouble
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Dirtydoublecruiser
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Doesadoubletake