lash out (something)
phrasal verb with lash verb uk/læʃ/ us/læʃ/
UK informal
浪费，挥霍（钱财）
to spend a large amount of money in a way that is unnecessary or that wastes it
He lashed out £5,000 on his daughter's wedding. 他为女儿的婚礼一下子花了5000英镑。