Breeze
eXtensible Stack Based Language
...The process of defining a word is replaced by "pushing" onto a named stack, and that of executing a word is replaced by "popping" from a named stack. A named stack is called an application. Data and code can be moved between applications by using operations (i.e. other applications) that make use of a default stack as an intermediate. In principle, the language recognizes only numbers that can be organized into lists, which are the only form of aggregation of data/code.