1661 syndrome n.— «The 1661 syndrome—whereby a woman (and it almost always is a woman) looks like a bouncy-tressed, pert-bottomed teenager from behind and a grandmother from the front—has become a cultural joke.» —“Age-old...
AMW n. a (pretty) woman whose career derives in some way from her appearance. Etymological Note: Initialism for actress model whatever (source: Double-Tongued Dictionary)