Flowery words; ornate or rhetorical phrases that sound pleasant but often lack substance (four-character idiom).
政治家の演説にはしばしば美辞麗句が並ぶ。
Politicians' speeches often contain flowery words.
美辞麗句に惑わされず、内容をよく読むべきだ。
Don't be fooled by flowery phrases; you should read the content carefully.
その広告は美辞麗句ばかりで、実際の商品情報が少ない。
That advertisement is full of flowery language but contains little actual product information.