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a sexually attractive person; a very good-looking person of the opposite sex
hot + (cu)tie
a hot water bottle
also hotty, "attractive person," teen slang by 1995, from hot + -ie. The same word was used from 1947 with sense "hot water bottle."
An attractive person; beddy, dish: if a guy or girl is cute, they're a ''hottie'' or ''fine'' (1990s+ Teenagers)