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

"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

As Stacey Leasca writes in "Food & Wine," Garten hosted restaurateur Danny Meyer — founder of New York City's Union Square Hospitality Group — on her Food Network show "Be My Guest" and served him a brunch with a "Vanilla Coffee Shakerato."

From Salon

“It’s in 6/8 time, so if you feel like waltzing, be my guest.”

From Seattle Times