be going great guns

be going great guns

To do something enthusiastically and successfully. He was hesitant at first, but now that he's been on the job for a month, he's going great guns.
See also: going, great, gun

be going great guns

to be doing something very successfully and quickly I know he had a little difficulty at the start of the course but he's going great guns now.
See also: going, great, gun