There is at least one attempt at this called 'Sweet Expressions' still floating out on the web somewhere. It got horribly ripped by the c.l.l community. Persona

There is at least one attempt at this called 'Sweet Expressions' still floating out on the web somewhere. It got horribly ripped by the c.l.l community. Personally, I don't see that it adds anything to the language but ambiguity. It's worth looking, however, at if you are interested in alternative syntaxes for Lisp.