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.
Cramming (education) A young boy does some last minute cramming while walking to school with his sister. In education, cramming (also known as mugging or swotting, from swot, akin to sweat, meaning to study with determination) is the practice of working intensively to absorb large volumes of informational material in short amounts of time.