Source : Webster's Revised Unabridged Dictionary (1913)

Mux \Mux\, n. [Cf. {Mixen}.]
   Dirt; filth; muck. [Prov. Eng.] --ose.

Mux \Mux\, v. t.
   To mix in an unitidy and offensive way; to make a mess of.
   [Prov. Eng.; Colloq. U.S.]

Source : Free On-Line Dictionary of Computing

mux
     
        {multiplexing}