Spamigation: The abuse of bulk legal action. Filing lawsuits in bulk (as in the RIAA filesharing lawsuits or DirecTV smartcard lawsuits) without taking care to assure all defendants are actually at fault. As such, some defendants are bound to be entirely innocent, but this doesn't matter because you don't really plan to take any to trial.
Can also be used for threats of legislation, when sending out cease and desist and other threatening letters is bulk, because it's easier to bulk threaten than to research. Possible alternate spelling: Spammigation.