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.
Full Definition of CLICK. transitive verb. 1. 2. : to select especially in a computer interface by pressing a button on a control device (as a mouse).intransitive verb. 1. To open the program, point at the icon and click the left mouse button. 2  Click here to check spelling in the document. 3  I know him fairly well, but we've never really clicked.