to appear to rise up [from somewhere]; to take form or definition, usually threatening to some degree. A great city loomed up in the distance. It looked threatening in the dusky light. A ghost loomed up, but we paid no attention, since it had to be a joke.
Definition of 'clickjacking'. clickjacking. noun informal. the practice of using a disguised hyperlink to direct an internet user to a website he or she does not wish to visit. Word origin of 'clickjacking'. from click (sense 5) + hijack.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  lumberjack(Noun) a person whose work is to fell trees. 2  lumberjack(Noun) a lumberjacket. 3  lumberjack(Verb) To work as a lumberjack, cutting down trees.