You know what it looks like… but what is it called?
TAKE THE QUIZ“all's”
The following 2 entries include the term all's.
all's fair in love and war
idiom—used to describe a situation in which people do not follow the usual rules of behavior and do things that are normally considered unfair
all's well that ends well
idiom—used to say that a person can forget about how unpleasant or difficult something was because everything ended in a good way
Love words? Need even more definitions?
Merriam-Webster unabridged