(one) will kill (someone)(redirected from they will kill)
(one) will kill (someone)
One will be extremely, belligerently angry with someone (though not with an actual intent to kill them). Mom will kill you if she finds out you broke her antique vase! I swear, I'll kill him if he goes poking his nose in my room again.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.