Excerpts from Randy Kramer's mail of 23 Sep 2005 (CDT):
> My first thought is that I would call the thing getting mixed in the
> mixer and the other (the thing getting something mixed into it) the
> mixee.

My thought pattern exactly. Unfortunately "mixin" is the official name
of the "mixer", so "mixee" does sound a bit odd. Oh well, it's
English---we don't value linguistic consistency in the first place.

Other options are target, recipient, subject... victim?

-- 
William <wmorgan-ruby-talk / masanjin.net>