Well, RPN with parentheses, as a layer of syntax, would be easy to deal with. That's what Lisp backwards would be.

  ((a b +) (a b) add defun)

  (((list pop) print) list while)

It helps me to read it in Japanese:

"A to B wo tasu, A to B no paramēta no aru, 'add' to iu kansuu wo 'defun' shite."

"lisuto wo 'pop' shite, sore wo insatsu shite, lisuto ga kara de nai aida ni"

Interesting things happen. When we think about how 'add' is called, we follow it from right to left, contrary to the direction of speech of the Japanese sentence. The function add is called, the (a b) parameters receive argument values and the (a b +) is evaluated.

However, the chained application expressed by nesting, which people complain about being backwards (so they need to invent piping/threading macros to go left to right) now reads left to right! We do have to evaluate the while condition first, but then the pop and print to left to right.