Is a type of young woman who is very attractive or recently was much more attractive, but has squandered or damaged her appearance or reputation through the use of alcohol, drugs,too much sun and fun or some combination thereof. They are usually found in the company of douchebags. Term is derived from Yasmine Bleeth, who was a voluptuous actress on TV program "Baywatch", but after involvement with drugs and douchebag boyfriends, ended up disgraced and her looks faded. She is now the wife of a nightclub owner in Michigan.
She is such a bleeth. She's nice, but her sister is getting bleethier by the day. After 5 years of crack addiction she was completed bleethed out. Shut up you dopey bleeth!