The tale of the Ken doll's crotch is a strange, yet sad one indeed.
Why IS Ken's crotch like that? According to the article, the answer, it turns out, is intricate and somewhat bizarre. The bulge was the result of careful strategizing to which his inventors, businessmen, a psychologist, and Japanese manufacturers all contributed. However, Ken's crotch became kind of a euphemism for a person with almost non-existent genitalia. It is a twisted saga for sure and you can read all about Ken's crotch here