push the boat out
US /pʊʃ ðə boʊt aʊt/
UK /pʊʃ ðə boʊt aʊt/

1.
大肆挥霍, 大肆庆祝
to spend a lot of money on a celebration or special occasion
:
•
For their anniversary, they decided to really push the boat out and book a luxury cruise.
为了他们的周年纪念日,他们决定大肆挥霍,预订了一次豪华游轮。
•
It's her 50th birthday, so we're going to push the boat out and throw a huge party.
这是她50岁生日,所以我们要大肆庆祝,举办一个盛大的派对。