2 definitions by Cookie monster and a dragon

Booked

The time when you are involved mind and soul to read a book and in nothing else.

C : hey, why you didn't pick up my call yesterday ?
D: I am sorry, I was booked with songs of ice and fire.

A-booked or audio booked is when you are lost in the world of words, stories and imagination with voice of an audio book

1.

She was A-booked in the mysterious wonderland of Alice

2.

C: hey, what you listening to ? Coldplay ?

D: Nope, A-booked with witcher