going great guns

Verb

go great guns (third-person singular simple present goes great guns, present participle going great guns, simple past went great guns, past participle gone great guns)

1. (idiomatic, intransitive) To perform particularly well; to be particularly successful.
   • The game between Hargate and Lord Dreever was still in progress when Jimmy returned to the billiard-room. . . . "Hargate's been going great guns. I was eleven ahead a moment ago, but he made a break of twelve."1910, P. G. Wodehouse, chapter 17, in The Intrusion of Jimmy
2. Used other than figuratively or idiomatically: see go, great guns. (To move or proceed very quickly or energetically.)
   • Sam Fuller and the crew of New York Clipper continue to go great guns and retain a comfortable lead as they approach the south eastern tip of Cuba.2002 December 4, “Cuba Beckons: Clipper Race 2002”, in International Sailing Federation (www.sailing.org), retrieved 05 Nov 2010