That's not what "slander" means

PewDiePie made this tweet yesterday, in response to a Vice article:

The only one asking for it is Vice for a lawsuit for slander. 👌🤠 pic.twitter.com/BkYX6TASPi

— ƿ૯ωძɿ૯ƿɿ૯ (@pewdiepie) May 25, 2018

I skimmed the Vice article in question, and I didn't notice anything that seemed grossly inaccurate.  But more importantly:  PewDiePie is mixing up the terms "slander" and "libel."  There was a scene in the first Spider-Man film where J. Jonah Jameson explains the difference:

How can anyone forget?  "Slander is spoken.  In print it's libel."