noun, noun or participle which takes 'suru', transitive verb
impulse purchase; on-the-spot buying
Refers to buying something immediately on seeing it, without prior planning. Often used in shopping contexts, both as a noun and with する.
そのバッグを見た瞬間、即買いした。
The moment I saw that bag, I bought it on the spot.
即買いを防ぐために、買い物
I make a shopping list to avoid impulse purchases.