Let it roll!

let it roll

1. To let it go; to start it up. Often used as an imperative. OK, the rocket is ready to launch. Let it roll! I replaced the spark plug, so go ahead and let it roll so we can see if there's any difference. We've spent so long working on this ad campaign that I'm excited to finally let it roll.
2. To do something without inhibition or restraint, typically with great enthusiasm or force. Wow, did you see that kick? He really let it roll. When I'm writing a first draft, I like to just let it roll and not worry about typos or grammar.
See also: let, roll

Let it roll!

verb
See also: let