On Sunday's season 11 premiere, Kendall called Kylie the "biggest f--king bitch" she's ever met when Kylie refused to let Kendall wear her dress.
Now Kendall is letting everyone know what she thinks about Kylie's behavior in the Keeping Up With the Kardashians season 11 supertease video.
"What's the deal with Kylie?" Caitlyn Jenner asks Kendall.
"She doesn't have her priorities straight and I tell everyone that," Kendall says.