be my guest

Idioms  

1. Do as you wish. For example, May I drive your car?—Sure, be my guest, or Do you mind if I go to the play without you?—No, be my guest. This expression not only literally invites someone to behave as one's guest (using one's house, belongings, etc.) but also figuratively tells someone to feel free to act as he or she pleases. [Colloquial; c. 1950] Also see feel free.

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Example Sentences

On “Be My Guest with Ina Garten,” the Barefoot Contessa shares her cutting board with A-list celebrities like Jennifer Garner and Tina Fey, which is a bit light on utility and the common touch.

From Salon

“But by all means, be my guest.”

From Literature

"If you want to complain about the performance, be my guest, crack on. We're delighted with the three points," the captain said.

From BBC

"If you want to complain about the performance, be my guest, crack on. We're delighted with the three points."

From BBC

If you think you can get to know a character by reading a Wikipedia page, be my guest.

From Los Angeles Times