A googolplex is a really, really big number. It is equal to 10 raised to the power of a googol, which is a number with a one and a hundred zeros after it. It is so huge that it is almost impossible to imagine or write down. Full definition
4 The Simpsons and their Mathematical Secrets by Simon Singh, Bloomsbury, # 18.99 What have Homer and Bart got to do with Euler's equation, the googolplex or the topology of doughnuts? (newscientist.com)
It's all first act and no second or third, meaning everything that happens in the film would function as the set - up in a real film (see also: all of «Episodes» 1 and 2), and that its primary purpose is to act the whorish shill for product placement — never does the silver screen so resemble a bulletin board as when this variety of film drags itself into the googolplex. (filmfreakcentral.net)
To get to grips with the googolplex we first must return to that memorable day when Kasner is out walking with his nephews. (bookbrowse.com)