A religious sect of the seventeenth century, so called from Jean Labadie, of Bourg in Guyenne. They were Protestant ascetics, who sought reform of morals more than reform of doctrine. They rejected the observance of all holy days, and held certain mystic notions. The sect fell to pieces early in the eighteenth century.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894