A non-sexual object (i.e. a carrot) women use for masturbation that causes the death of a woman by means of foreign substances entering the respiratory or circulatory systems through a tear in the vaginal walls from the use of said object.
Note: A queef will force said object out of the clitoris and, thus, negate its title as a killdo.
Dude, did you see "1000 Ways to Die" last night? Some chick died from masturbating with a carrot. They called it a killdo.