Chińskie Ostrzeżenie is a group on strm.pl[1], with jokes about Jeff Dean being commonplace amongst its members[1]. It is also used to refer to warnings issued by China, such as those in response to Nancy Pelosi's visit to Taiwan in 2022[2] or the implications of P=NP being true during an interview with Jeff Dean[3]. The phrase has been used since at least 2011[4].