鍵盤俠 [jiàn pán xiá] n. Keyboard+knight-errant. People who like going on a rant on the Internet. They are cynical and judgmental without the ability to make a difference through action. 噴 [pēn] v. To spurt, spout, gush. This Internet slang term means “to go on a rant,” often used to describe Internet trolls.