An acronym for 'Youth Dies Hard', someone, generally an older person, who wears clothes for someone much, much younger than them, due to the fact that they can't knowledge their oncoming age and eventual death. Often an older woman wearing the same clothes as her daughter, an older man with a porche, or a person still wearing clothes from the era when they were a teenager, even though those clothes are well out of style.
Sally's dad is such a YDH! He's still wearing clothes from the seventies!
by Pitselly February 19, 2009