Play word 丁重語 丁重語 ていちょうご courteous language (i.e. humble language in which an action or object is not directed toward the listener or a third party)
Play word 二重敬語 二重敬語 にじゅうけいご redundant keigo (i.e. improper use of the -rareru honorific form together with an honorific verb such as ossharu)