Active euthanasia.

(ice hockey) An effort by a penalized team to nullify a penalty and opponent's power play, a length of time during the game when a penalized team has one or more players in the penalty box.

(idiomatic) To win or earn a large amount of money.

Alternative form of shoot the messenger

(US) Of crops, having been killed by winter weather.

The slaying of a giant. / (sports) The defeat of a team by a much weaker opponent.

(Internet) A user's file listing the users of a newsgroup whose postings are to be ignored, or other criteria for ignoring posts.

(Internet) To add (a user) to a kill file.

(US) that part of a slaughterhouse where the animals are killed and initial processing is carried out.

(euphemistic, UK, Canada) A typically Middle Eastern and South Asian cultural practice whereby a family member, usually female, is murdered by other family members, the act being justified as retribution for a (usually sexual) slight upon the family's honour.