\Sir"rah\, n. [Probably from Icel. s[=i]ra, fr. F. sire. See {Sir}.] A term of address implying inferiority and used in anger, contempt, reproach, or disrespectful familiarity, addressed to a man or boy, but sometimes to a woman. In sililoquies often preceded by ah. Not used in the plural. ``Ah, sirrah mistress.''