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.
PewDiePie also began a Water Campaign charity, where his fans could donate money to Charity: Water, in celebration of reaching ten million subscribers. PewDiePie also contributed one dollar to the charity for every 500 views the video announcing the campaign accumulates, up to a maximum of $10,000.