let her roll

let her roll

1. To let it go; to start it up. Often used as an imperative. "Her" is used in the same way that some ships and machines are referred to as female. OK, the rocket is ready to launch. Let her roll! I replaced the spark plug, so go ahead and let her 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 her roll.
2. To do something without inhibition or restraint, typically with great enthusiasm or force. Wow, did you see that kick? He really let her roll. When I'm writing a first draft, I like to just let her roll and not worry about typos or grammar.
See also: let, roll
References in periodicals archive ?
The 14/1 shot is trained by Fozzy Stack, who said: "We went back to basics today - jump and let her roll along.
The 5-2 favourite won from the front and trainer Kevin Prendergast said: "I told Declan to hop out and let her roll."
"I just told Gary to jump and let her roll," explained Halford after the five-year-old mare beat Brushed Aside by five lengths, "I think we should ask for stall one here again.