Binge buying; purchasing large quantities in a short time. A colloquial term popularized to describe mass buying by tourists (notably Chinese tourists in Japan).
2010年代半ば、中国人観光客による爆買いが日本の報道で取り上げられた。
In the mid-2010s, binge buying by Chinese tourists was reported widely in Japanese media.
セールでテレビを爆買いしてしまい、置き場所に困っている。
I binge-bought TVs at the sale and now I don't know where to put them.
店は品薄を防ぐために一人当たりの購入数制限を設け、爆買い対策を行った。
The store imposed per-customer purchase limits to prevent shortages and curb binge buying.