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or suffer the consequences. (An inspecific threat of bad consequences.) Do what I tell you, or else. Don't be late for work, or else!
or We need to be there by eight or else we'll find it hard to park the car.
Usage notes: when spoken after a demand, or else can be a mild threat: Turn down that radio or else I'll take it away from you! You better remember to bring the wine, or else!
1. Otherwise, in different circumstances, as in Present your case now, or else you won't have a chance. [c. 1300]
2. Regardless of any extenuating circumstances, no matter what, as in Be there on time or else! [Second half of 1800s]
1. Used to indicate an alternative: We need to eat the leftovers or else buy more food.
2. Used to indicate negative consequences that will result if an action is not followed: We need to pay the bill, or else the electricity will be shut off.
3. Used after a command or demand to make a threat: Be there on time, or else!