暗あん送そう秋しゅう波は

noun

amorous glance; making eyes at; covert flirtation

A yojijukugo describing a romantic or flirtatious look, often exchanged secretly. The second gloss extends the meaning to behind-the-scenes maneuvering or currying favor, but the core image is a sidelong amorous glance.

• 彼かの女じょは彼かれに暗あん送そう秋しゅう波はを送おくった。

  She cast an amorous glance at him.

• 会かい議ぎ中ちゅう、二人ふたりは暗あん送そう秋しゅう波はを交かわしていた。

  During the meeting, the two were exchanging flirtatious looks.