浦島太郎状態
Meanings
1
Rip van Winkle feeling; feeling that everything has changed after a long absence
Describes the shock of returning to a familiar place after a long time and finding it completely transformed, like the folk tale of Urashima Tarō. Often used humorously or self-deprecatingly.
When I returned to my hometown after ten years, the area in front of the station had completely changed and I felt like Rip van Winkle.
I can't keep up with the latest smartphone features; I feel totally out of touch.