expression, noun
autumn, the season of good appetite
A set phrase celebrating autumn as a time when food tastes especially good, often due to the harvest and cooler weather.
食欲の秋だから、つい食べ過ぎてしまう。
Since it's the season of good appetite, I end up overeating without meaning to.
食欲の秋を満喫するために、新米を買った。
To fully enjoy autumn's bounty, I bought some new-crop rice.
Another seasonal phrase meaning 'autumn, the season for sports,' part of the same cultural set.
A modern set phrase combining 食欲 (appetite) and 秋 (autumn), reflecting the cultural association of autumn with harvest and hearty eating.