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/fod/ [Abbreviation for "Finger of Death", originally a spell-name from fantasy gaming] To terminate with extreme prejudice and with no regard for other people. From MUDs where the wizard command "FOD
In aviation, FOD means Foreign Object Damage, e.g. what happens when a jet engine sucks up a rock on the runway or a bird in flight. Finger of Death is a distressingly apt description of what this generally does to the engine.