(oil industry) a method of closing an oil well, by pumping in drilling fluid (synthetic mud) to shut off the flow of oil, and following with concrete (cement) to plug the hole

(video games) A level in a computer game that is impossible to win, usually due to programming errors.

plural of kill screen

(transitive) To kill by the effects of wintery conditions / (intransitive) To die from the lethal effects of wintery conditions

plural of kill-joy

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

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

Alternative form of shoot the messenger

(dated, slang) To get a positive test result from an old-fashioned pregnancy test.

To eliminate, or make extinct. / (of writers or producers) To take a character out of a television series or other work by purposefully and deliberately having them killed within the plot.