in platonic or workplace relationships when you consider a friend of the opposite gender to be non-sexual, named after the style of moulded plastic underwear worn by the britsh toy 'action-man'. I.e. You can't find them sexual because from your point of view they lack genitals.
your friend Barbara is really hot, but I suppose you've known her such a long time she wears action-man pants...
by Blisteredcanker September 04, 2010