A term originally from the (now-defunct) WWWF Grudge Match website, which was picked up and commonly used on CBR, short for All Mangled (or sometimes Mutilated) And Killed. This refers to a situation where the combatants in a vs. debate will destroy each other with no winner. It is usually used facetiously instead of seriously, for example someone will come into a thread featuring two characters he doesn't like and "invoke AMAK", thus stating his desire to see both sides wiped out.
Endless Mike is fond of this term.