trick or treat
US /trɪk ɔr triːt/
UK /trɪk ɔr triːt/

1.
不給糖就搗蛋
a Halloween custom in which children in costume visit houses and ask for treats, threatening to play tricks if they do not get them
:
•
The children went from door to door, shouting "Trick or treat!"
孩子們挨家挨戶地喊著「不給糖就搗蛋!」
•
Every Halloween, my kids love to go trick or treating.
每年萬聖節,我的孩子們都喜歡去不給糖就搗蛋。