拖堂

拖堂	tuō táng	to drag out a lesson / to insist on extending class after the bell
拖	tuō	variant of 拖
拖	tuō	to drag / to tow / to trail / to hang down / to mop (the floor) / to delay / to drag on
堂	táng	(main) hall / large room for a specific purpose / CL:间 / relationship between cousins etc on the paternal side of a family / of the same clan / classifier for classes, lectures etc / classifier for sets of furniture