to strip sb of their Party membership and government job (開除黨籍|开除党籍[kai1 chu2 dang3 ji2] + 開除公職|开除公职[kai1 chu2 gong1 zhi2]); (computing) to run two instances of an app simultaneously (often with different accounts)
trad. 雙開
Also written 雙開【shuāng kāi】