We don't use sacked to mean "dismissed from a job" very often in American English. "Fired" is much more usual here.
Write in the USA.

Student or Learner
https://www.idiomsandslang.com/get-the-sack-be-sacked/
Get the Sack, Be Sacked
Definition: To be fired
Example: “Be sacked” is known and understood on the USA, but “get the sack” is much less common.
For this idiom, do you use "be sacked" more in the US?
We don't use sacked to mean "dismissed from a job" very often in American English. "Fired" is much more usual here.
Write in the USA.
Last edited by GoesStation; 14-Jan-2020 at 14:40. Reason: Improve wording.
I am not a teacher.
I'm going to disagree with Goes on this one. I think 'get sacked' is fairly common in AmE. I don't know that I've heard 'get the sack' used much, however, so I do agree with that part.
It might be regional, too.
Wear short sleeves! Support your right to bare arms!