Activists who do more harm their cause than help it by attacking the public instead of the organizations responsible for what they are protesting against.
Just Stop Oil is a whacktivist group that attacks paintings in museums and disrupts traffic instead of going directly to the facilities owned by the oil industries and organizing large noticeable protests there.
by Green_Devil November 20, 2022
One who backs and/or petitions a law or idea that seems crazy, ignorant, dumb, or socially unfitting or unacceptable for the times (these words/situations often defines the term "whack" or 'whack-o").
That chump must be a whacktivist for supporting the anti-same sex marriage bill - isn't love universal?
by T.M. Setsuna July 10, 2012