•an all-in-one device or person which has (or claims to have) only positive attributes and which can (or attempts to) do the work of several specialized tools
eierlegende Wollmilchsau (literally “egg-laying wool-milk-sow”), from earlier eierlegendes und milchgebendes Wollschwein (literally “egg-laying and milk-giving wool-swine”). The concept of a "Schwein, / das Merinowolle trägt / und dazu noch Eier legt", a "pig / that bears merino wool / and furthermore lays eggs, too" is mentioned in poetry as early as 1959.