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.
Concrete leveling, or mudjacking as it is sometimes called, is a method by which concrete is poured or pumped under and existing concrete slab that has been cracked to level out the different areas and make the surface flat again.he process of concrete leveling is that holes are drilled in the concrete slab around the area that is cracked or sagging, and new concrete is pumped into those holes to jack up, or raise the level of the concrete that is causing the problem.