秋波 (しゅうは) Japanese meaning | KotomoraExpressions
秋波を送るcast amorous glances; make eyes at; give the eye
casting a coquettish glance (at a man)
amorous glance; making eyes at; covert flirtation
Etymology
From Chinese origin, literally 'autumn waves', a poetic metaphor for the clear, rippling beauty of a woman's eyes and their seductive glance.
