Bakku-shan

/ˈbɑku ʃɑn/ noun

A person who appears attractive from behind but disappointing from the front — the illusion of beauty that exists only from one angle. It's the visual equivalent of false advertising in human form.

Japanese compound of 'bakku' (back, from English 'back') + 'shan' (a suffix meaning beautiful or good-looking). This modern Japanese slang emerged in the late 20th century, blending English borrowing with Japanese linguistic patterns to describe a very specific social observation.

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