Get With The Times Meaning

(idiomatic, slang) to become cognizant of modern trends, words or ideas

Example: 2015, Southpark, Season 18, Episode 9:
  Kyle: This fat fuck thinks he's PewDiePie! Because of him I can't get Ike to come out of his room!
  Cartman: Because of me?! I'm pretty sure I'm not the person who invented Let's Plays, Kyle.
  Kyle: Let's Plays?
  Cartman: That's what they're called, dude. Get with the times.