impulse buy
noun [ C ] uk/ˈɪm.pʌls ˌbaɪ/ us/ˈɪm.pʌls ˌbaɪ/
冲动之下购买的东西
something that you buy suddenly and without thinking carefully
I hadn't intended to get one - it was an impulse buy. 我本没打算买它的——一时冲动就买了。
impulse buying
noun [ U ] ukus
冲动性购买
the act of buying something that you had not planned to buy, because you suddenly want it when you see it
They display chocolates next to supermarket checkouts to encourage impulse buying. 他们把巧克力放置在超市的收银口处以刺激冲动性购买。