Meaning of the word "Get cracking" in English

What does "Get cracking" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

Get cracking

US /ɡɛt ˈkrækɪŋ/
UK /ɡɛt ˈkrækɪŋ/

Idiom

to start working or doing something quickly and efficiently

Example:
We've got a lot to do, so let's get cracking!
If you want to finish on time, you'd better get cracking.