If said in a cheerful, praising tone, it means "You're doing great, continue the good work!"
If said in a warning tone, it is a threat that means "Stop it right now, or reap the consequences!"
Synonyms for keep it up
On this page, you will find 30 slang terms related to keep it up. Some of the top words include: delightful, oo lala hussay hussay, smek, bad news bears, Xtreme, and 25 more.