be my guest
1
used when giving someone the confirmation that they can do, take, or use something
The idiom "be my guest" is a polite and accommodating expression used to grant permission or give someone approval to do something. It is often used when one person is inviting or allowing another person to take a particular action. While the exact historical origin of this idiom is not precisely documented, it is a widely recognized and commonly used phrase to convey willingness to allow or support someone's request.
- If anybody wants to work on this, be my guest.
- May I choose the restaurant?Be my guest!
- If you want to try the cake I baked, be my guest; it's on the counter.