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.
Clickjacking (User Interface redress attack, UI redress attack, UI redressing) is a malicious technique of tricking a Web user into clicking on something different from what the user perceives they are clicking on, thus potentially revealing confidential information or taking control of their computer while clicking on seemingly innocuous web pages ...