Meaning of the word "be booked up" in English

What does "be booked up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

be booked up

US /bi bʊkt ʌp/
UK /bi bʊkt ʌp/
"be booked up" picture

Idiom

to have all available times or spaces reserved; to be fully scheduled

Example:
The restaurant is completely booked up for the entire weekend.
I can't see you next week, I'm totally booked up.