misplug noun 1verb 1forms 3 noun1 •An instance of misplugging.This circuit is so arranged that in case an operator at the manual end makes a misplug, the correction of the error will have no effect on the setting of the automatic. — 1908 verb1 •To plug incorrectly.Be very careful not to misplug a three-wire system to the stage box and run 240V accidentally. — 1993 formsmisplugged · misplugging · misplugs