美其名曰měi qí míng yuē

call it by the fine sounding name of; describe it euphemistically as;give sth the high-flown name of
❍ ～ “不干涉”实则是“坐山观虎斗”。(《毛泽东选集》558) They euphemistically described their actions as“non-intervention”，but what they actually did was to “sit on top of the mountain to watch the tigers fight”./福建野生着的芦荟，一到北京就请进温室，且～ “龙舌兰”。(鲁迅《朝花夕拾·藤野先生》) When the aloe which grows wild in Fujian comes to Beijing,it is ushered into a hothouse and given the beautiful name “Dragon-Tongue Orchid.”

美其名曰

be called by the fine sounding name of;euphemistically called

美其名曰měi qí mínɡ yuē

曰：说。用很好听的名字来称呼。call it by the fine-sounding name of, give sth. the high-flown name of

美其名曰měiqímíngyuē

指不符合实际地为某种事物冠以美好的称号或名义，把它叫作（某某）。