Knock Yourself out.
English
idiom
Go ahead and do what you want.
Trusted by1M+English learners & teachers worldwide
Go ahead and do what you want.
Trusted by1M+English learners & teachers worldwide
A relaxed way to say 'go ahead' or 'help yourself.'
When you tell someone to knock themselves out, you give them full permission to do as they like.
The tone is light and often joking.
"Be My Guest"
—
Also means 'go ahead' — be my guest is slightly more formal; knock yourself out is casual and enthusiastic
"Go for It"
—
Encouraging someone to try — knock yourself out implies full permission plus encouragement to go all in
"Knock Yourself out"
—
A casual, enthusiastic way to give someone permission or encourage them to proceed freely
Can I try a different approach to the pitch structure?
Knock yourself out — just make sure the key message is still front and center.
Do you mind if I rearrange the living room while you're out?
Knock yourself out — just leave room for the couch where it is.
How did your boss react when you asked to lead the project solo?
He just smiled and said 'Knock yourself out.' Best thing he ever said to me.
