spoken for

adj

claimed, reserved, or occupied / (of a person) taken; unavailable; not single (compare with the obsolete: bespoken)

The last piece of cake was spoken for.

意味（1）

claimed, reserved, or occupied

I looked all over, but all the seats are already spoken for.

意味（2）

(of a person) taken; unavailable; not single (compare with the obsolete: bespoken)

I'm sorry, I can't go on a date with you – I'm spoken for.