1. Something so stupid, or a widespread source of stupidity that spreads like a nuke spreads death and
destruction. And poisons future
generations with it's fallout.
2. Somebody or any
collective group of people who promote acts of idiocy and causes others to act in similar ways to said "tardnuke".
Reality TV is a tardnuke it glorifies blatant
stupidity, Profiling people, and causes entire groups of people to want to act like idiots, cause or promote baseless bigotry and/or in any way brings down the
collective I.Q of those involved with it and anyone who supports it.