Yo-yos

[Jeremy Osner]

doktor at primenet.com wrote:
> 
> 
> Anyone have any more information on the origins of the yo-yo, or how the
> word first came to be applied to describe the vacillating and the stupid?
> 

While I cannot claim to _know_, It seems to me like the vacillation is a
very simple and direct metaphor; probably once it was being used to
describe vacillating someone went on to use it in an insulting manner
and it developed into meaning stupid. 

Just my $.02

Jeremy