Source : WordNet®

speakeasy
     n : (during prohibition) an illegal barroom

Source : Free On-Line Dictionary of Computing

Speakeasy
     
        Simple array-oriented language with numerical integration and
        differentiation, graphical output, aimed at statistical
        analysis.
     
        ["Speakeasy", S. Cohen, SIGPLAN Notices 9(4), (Apr 1974)].
     
        ["Speakeasy-3 Reference Manual", S. Cohen et al. 1976].