Push the boat out

From: http://www.bbc.co.uk/worldservice/learningenglish/language/2014/03/140318_todays_phrase_push_boat_out.shtml

A fishing boat sits in mud at low tide

This boat isn't going anywhere unless someone gives it a push

Today's Phrase

If you push the boat out it means you spend more money than you normally do, especially for a celebration.
Examples:
Rob's wedding was amazing; they really pushed the boat out and made it a day to remember.
As it's our anniversary, let's push the boat out and buy a bottle of champagne!

Take note

If you miss the boat, you miss a good opportunity because you wait too long.
Example:
Sorry John, the deadline for applying for the job has passed. You've missed the boat.

Interesting fact

Boats come in all shapes and sizes. Skiffs are very small boats for one person. Yachts are larger boats with sails. Cruise ships are much bigger and take passengers across the sea or ocean. The biggest cargo ships can carry more than 10,000 containers and weigh thousands of tons.