1. teamkill - Noun
2. teamkill - Verb
teamkill (third-person singular simple present teamkills, present participle teamkilling, simple past and past participle teamkilled)
English Wikipedia has an article on:Team killingWikipedia
(video games, transitive) To kill another player on one's own team.
teamkill (plural teamkills)
(chiefly video games) The killing of another player on one's own team.