meaning of an idiom

[leeyang]

What's the real meaning of "Be my guest !"
Is it the same with "You're welcome !"

[Casiopea]

It doesn't mean "You're welcome." It means, help yourself; feel free to do something. For example,

Max: Wow! You have a lot of DVDs. Would you mind if I borrowed some?
Sam: Be my guest. <Go ahead and take some DVDs>

Pat: Your car is fabulous! What's it like to drive?
Sam: <hands Pat the keys> Be my guest. <Drive it if you want.>

Hope that helps.

[ewelina]

In relation to this post please advise if and when the form "welcomed" is acceptable.

Thanks,
Ewelina

[Casiopea]

Simple Past
We welcomed them.

Past Participle
Q: Did you welcome them?
A: They were welcomed.

Q: Had you welcomed them?
A: They had been welcomed.

[Casiopea]

Welcome, leeyang.