Onion

A Stack language compiled to lua. Aims to be like a bit like forth, with concessions made to needing to compile to lua, as well as first class support for a "subject stack" that allows a very pleasant stack-based version of object interaction.

https://github.com/yumaikas/onion

See Onion in Y minutes for an overview of the concepts of Onion. There is a Quick Reference as a one-pager/reminder of the various Onion concepts.