Push the boat out.
Push the boat out.
To 'push the boat out' is a vivid idiom that suggests going to great lengths, typically in terms of spending money or making an effort, beyond what one normally does. The idea here is similar to pushing a boat away from the safe shore into the unpredictable sea, symbolizing significant effort or risk. For instance, if someone usually has modest celebrations, but for a special occasion, they decide to 'push the boat out,' they might host a lavish party, much more elaborate than their standard fare.
They decided to push the boat out for their anniversary.
They decided to spend a lot of money for their anniversary.
For her birthday, they really pushed the boat out with a huge party.
For her birthday, they went all out with a huge celebration.
We pushed the boat out for our wedding, sparing no expense.
We spare no expense for our wedding, going all out.