You can crack a dozen eggs into one, and it will magically dispense them exactly one at a time into your mixer.
Coldplay used their mixer to do the final mixdown, which I got and I loved.
Every aspiring DJ could smash and grab himself a mixer and some turntables.
1610s, "worker who mixes," agent noun from mix (v.). As a type of machine, from 1876. Meaning "troublemaker" attested by 1938; sense of "social gathering to mingle and get acquainted" dates from 1916.