Celebrate the Mets' amazing season with 5 of their most popular #THIS moments from 2015

This. This. THIS. One word, four letters, so many meanings. As the Mets head to their World Series since 2000, let's look back at five of their best #THIS moments from the season that was:

There was Jacob deGrom's absolutely dominant performance in the All-Star Game, in which he made some of the AL's best hitters look like schoolchildren. Given this inning of work and his 1.80 postseason ERA through 20 frames, the Royals will have their hands full when they face him in the World Series. 

Looking to gain ground against the rival Nationals in early September, the Mets got big-time home runs from Kirk Nieuwenhuis and Yoenis Cespedes to help complete a series sweep. New York would end up winning the NL East by seven games. 

Of course, once the Mets officially secured their first division title since 2006, the celebration was on. 

In Game 5 of the NLDS, the Mets needed Jacob deGrom to hang tough, Noah Syndergaard to make his first relief appearance and Daniel Murphy to play the postseason hero. All told, it was enough to squeak by Los Angeles. 

And then the Mets kept rolling with a four-game sweep of the Cubs in the NLCS. It wasn't just their dominant pitching, or Cespedes, or even Wilmer Flores' magical tears that helped carry New York. Rather, it was Daniel Murphy's bat.You don't see postseason shows like this everyday. 

While we wait for the World Series to start and many more #THIS moments to come, check out the best of 2015 here.