expression, godan verb (-su)
A poetic, somewhat old-fashioned expression describing a woman blushing, likening the reddening of her cheeks to scattered autumn leaves. Often used in literary or romantic contexts.
彼女は恥ずかしさのあまり、顔に紅葉を散らした。
She blushed deeply out of embarrassment.
The expression likens a woman's blushing cheeks to scattered autumn leaves (紅葉), a traditional poetic image. The exact origin is uncertain, but it reflects classical Japanese aesthetics.