Also found in: Encyclopedia, Wikipedia.
The computer keystroke control-alt-delete, commonly used to force programs to close or the computer to restart. (A jocular play on the expression "one-finger salute," a rude raising of the middle finger to express anger, displeasure, or dismissal.) This computer is so janky that I have to give it the three-finger salute pretty much every day.
See also: salute
See also: TF