[mud_dauber]

Any chance that this is inspired by Forth?

[Drahflow]

Define "inspired". I became aware of Forth while implementing Elymas. But the decision to make it stack based was actually because I was too lazy (after some attempts) to implement a correct LALR-parser-generator.

[userbinator]

If you want a more conventional syntax, I'd suggest trying with a recursive-descent/precedence-climbing parser.

[narag]

You might like Pop11:

https://en.wikipedia.org/wiki/POP-11