Can you match boxing announcer Michael Buffer's famous phrase "Let's get ready to rumble!"?

Here's some to show the idea. Dance instructor, "Let's get ready to stumble!" Basketball coach, "Let's get ready to fumble!" Union leader going into negotiations, "Let's get ready to grumble!" Lawyers going into court unprepared, "Let's get ready to bumble!" Stockbroker, "Let's get ready to tumble!" Pastry chef, "Let's get ready to crumble!" Pastor starting prayer, "Let's get ready to mumble!" Without re-using "rumble" or any of mine here, can anyone come up with any more?