prat I. \ˈprat\noun (-s) Etymology: Middle English pret, pratte, from Old English prætt — more at pretty chiefly Scotland: trick; especially: one that is low or mean II. noun (-s) Etymology: origin unknown : buttocks — sometimes considered vulgar III. transitive verb (pratted ; pratted ; pratting ; prats) : to nudge or push (as a person) with the buttocks — sometimes considered vulgar < pratted him away from the ticket window >