LINGO MY 16 YEAR OLD BROTHER HAS SAID TO ME I'VE HAD TO GOOGLE

Am I old?
  1. That's lit sis
    Does that mean good? Or bad?
  2. They been sleepin on us
    What?
  3. Damnnnnn Cass back at it again
    I thought this was funny and didn't actually Google until I saw those little freaks on the Ellen show and realized he was plagiarizing.
  4. That's funny as frig
    What's a frig? Why's it funny?
  5. That's cool af
    Abercrombie and Fitch? No no it's not 2002 anymore.