all's fair in love and war
idiomPart ofwar
all's fair in love and war — idiom
1. used to say that in certain situations, such as romance or conflict, people may
1.idiom
Definition
used to say that in certain situations, such as romance or conflict, people may break normal rules of behaviour to get what they want
Example
Eli told his friend that taking the last ticket was unfair, but his friend replied that all's fair in love and war.
Mei-Lin knew her trick on her rival was mean, but all's fair in love and war, she reminded herself.