adj
gangbusters
adj
1
Extremely successful or thriving.
"Sales have been going gangbusters since the product launch."
How to Use Gangbusters
Learner’s notesIn plain EnglishDoing extremely well, often used for business or performance results.
When to use it
Informal, mostly American English.
Common pairings
going gangbusters
business is gangbusters
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Sales have been going _____ since the product launch.
Etymology
Shortened from the phrase "like gangbusters," originally referring to police busting up crime gangs with dramatic force.