be laughing all the way to the bank
US /bi ˈlæfɪŋ ɔl ðə weɪ tu ðə bæŋk/
UK /bi ˈlæfɪŋ ɔl ðə weɪ tu ðə bæŋk/
1.
to be making a lot of money very easily, often in a way that other people might disapprove of
:
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Despite the controversy, the company is laughing all the way to the bank with its new product.
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The scam artist was probably laughing all the way to the bank after tricking so many people.