A person who lives alone or independently from others, usually for selfish reasons. Originates from the English folk song Miller of Dee. Primarily heard in UK. Dan was quickly labeled the miller of Dee because of his carefree, bachelor lifestyle.

Any two people very similar in appearance, manner, or behavior, especially those who are or act particularly oafish or foolish. A reference to the names of two fictional twins in Lewis Carroll's Through the Looking-Glass, and What Alice Found There. It's a wonder we have any nice things at all with tweedledee and tweedledum over there running around the house knocking into everything. Most of the world sees our two countries as tweedledee and tweedledum, but we generally hate being lumped in with our boorish neighbors to the south.