Naradasur / नारदासुर (Narada-monster) is a monster is various Hindu mythological texts, who often fucks up everything, for others, by seeding feelings of self-doubts, revenge, confusion etc. etc. in minds of other people.
The act in which an individual with the tendency to over-vocalize their reasoned beliefs end up contradicting their past statements based on new information or realizations.
nick last week: "I realized that blablabla"
nick next week "Yeah blablabla was wrong and this is right"
halelah: "wow thats a naradox."