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.

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.

Name	Pronounced	Usage
Frodo	FRO-do (English)	Literature
Aristaios	-	Greek Mythology
Rikuto	ṙee-koo-to	Japanese
FerdinÁNd	-	Hungarian
Ghyslain	-	French (Rare)
Anastacia	-	English