pāi​zhuān

to criticize

拍砖 拍磚 pāi//zhuān
to criticize
(internet slang) to post a critical or opposing opinion on a forum or social media; to throw brickbats
to hit with a brick
(colloquial) to hit someone with a brick; to physically strike someone using a brick as a weapon
to flame
(internet slang) to engage in online abuse or verbal attacks; to argue aggressively with other users