What is "swag"? And what, exactly, does it have to do with fondue? If you've ever listened to Justin Bieber's occasionally hilarious lyrics, heard him in an interview or read his tweets, you might be a little confused by the lingo. We don't blame you. The singer has a vocabulary that's all his own, from "Bieberblast" to "Jerry." Luckily, we've decoded it for you -- check out the slideshow below for some important insight into the online Bieberverse.

Are we missing any must-know Biebs vocab? Sound off in the comments or tell us on Twitter @HuffPostTeen!

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  • Justin Bieber

    Let's start with the most obvious: This cute play on his last name is what he calls his fans. Are you a Belieber?

  • Swag

    You might recognize Justin's favorite word from the "Boyfriend" lyric, "Swag, swag, swag on you, chillin' by the fire while we eatin' fondue." The word seems pretty multi-purpose, but you can't go wrong with using it as a JB-approved substitute for "cool."

  • Our album

    Justin refers to his latest album, <em>Believe</em>, as "our album," a sweet tribute to his fans. Aww!

  • Bieberblast

    When Bieber's fans go crazy on Twitter to promote his music, it's called a Bieberblast! <a href="http://www.urbandictionary.com/define.php?term=BIEBERBLAST" target="_hplink">Urban Dictionary</a> defines it as, "When a crowd of strange, young, Justin Bieber-obsessed girls decides that they will all purchase the latest Justin Bieber single multiple times until it is on the top of the iTunes chart. They will keep telling people to BIEBERBLAST ITUNES on Twitter until Justin himself retweets them."

  • Jerry

    Justin's fans on Twitter <a href="http://www.cambio.com/2012/04/26/justin-bieber-explains-jerry-nickname-from-fans/" target="_hplink">named a certain part of the singer's body Jerry</a>. We knew Beliebers were crazy, but do you think they crossed the line?

  • Nervous and Sweaty

    Justin was recently caught exchanging flirty texts with supermodel Heidi Klum on Twitter. He says she makes him "nervous and sweaty" -- is that Justin's way of bringing his flirty A-game?

  • #teenageproblems

    No decoding necessary! Every teenager has #teenageproblems, even the prince of pop himself.

  • #biebsinparis

    We text our BFFS "Hey, wanna hang out?" But a tweet to a world-famous rapper works just as well, we guess... IF you're Bieber.