To Sack

1. To put in a sack or sacks.
2. To bear or carry in a sack upon the back or the shoulders.
3. To plunder or pillage, especially after capture; to obtain spoils of war from.
4. (American football) To tackle the quarterback behind the line of scrimmage, especially before he is able to throw a pass.
5. (informal) To discharge from a job or position; to fire.
6. (colloquial) In the phrase sack out, to fall asleep.

(plunder, pillage): loot, ransack

(to remove someone from a job): can, dismiss, fire, lay off, let go, terminate, make redundant, give the axe, give the boot, give (someone) their cards, give the chop, give the elbow, give the old heave-ho, See also: Thesaurus:lay off

(slang: to hit in the groin): rack