Definition
to expend a significant sum of money in a manner that may be deemed unnecessary or wasteful
揮霍（金錢）；浪費（金錢）
She lashed out on shopping, completely ignoring her budget.
她大肆購物，完全忽略了預算。
At the party, he lashed out on extravagant decorations without hesitation.
在派對上，他毫不猶豫地花大錢購買奢華的裝飾。
He often lashes out on food and drink, especially when dining out.
他經常在食物和飲料上花大錢，尤其是在外用餐時。