The act of entering a person's Live Stream (usually one in which the topic you disagree with) and leaving contradictory and baiting comments. These comments are typically sanctimonious in nature, implying your moral superiority over all who are currently enjoying the Live, with the intention of hijacking the focus onto one's self.
Did you see when Donna came into my Live today and totally crop dusted the comment section? Ya, she totally knew no one would care about what she had to say, but DK Crop Dusting occurred anyways!