Similes are a specific type of metaphor that use the words as or  like to make a comparison; a simple metaphor states that  something is something else.    For example,   Bob ran like the wind. This is a simile.
Born in Gothenburg, Sweden, PewDiePie originally pursued a degree in Industrial Economics and Technology Management at Chalmers University of Technology. In 2010, during his time at the university, he registered his PewDiePie YouTube account.
Throughout 2012 and 2013, PewDiePie's channel was one of the fastest growing on YouTube, in terms of subscribers gained. In 2013, the PewDiePie channel went from 3.5 million to just under 19 million subscribers, and by the end of 2013, it was gaining a new subscriber every 1.037 seconds.