1) When ones virtuous
nature becomes a severe and complete vice
2) Surprise Troll
, (the coherence of which is often disputed) in a collection of incoherent spams/trolls. Usually involves bringing back something completely worthless or of insignificant value, in a string of worthless attempts at references or personal history, to shame/bring glory to someone/thing.
3) The first two combined
also known as Cryptic internet trolling
i.e. 'Message Authentication Code
(hence 'Mack' attack)
in general, this internet technique is dualistic in nature and will half the user's social & IRL
life span, upon use.
IRL circumstances you are considered insane