The 20-year-old model definitely knows how to make it sting.
Kendall Jenner is clapping back.
The 20-year-old model took to her site on Thursday to fight back against those questioning her supermodel status. "If you're going to tell us not to be in "your moment," then don't be in mine!" she wrote.
WATCH: Kendall Jenner Talks Growing Up in the Spotlight, Being a Belieber and Bowing Down to Beyonce
Jenner is, of course, responding to Stephanie Seymour's recent statements to Vanity Fair, in which Seymour discounted Jenner's and Gigi Hadid's supermodel titles.
"They are completely different than we were," Seymour -- considered one of the original six supermodels -- told Vanity Fair at last week's amfAR Inspiration Gala in New York. "Supermodels are sort of the thing of the past. They deserve their own title."
The 47-year-old model instead offered up a new title for Jenner and Hadid: "B*tches of the moment! That would be a good title for them."
While certainly harsh, Seymour's statements were not alone. In fact, the she was responding to what actress and former model Rebecca Romijn told ET in April.
"[I] hate it that these, you know, social media stars are now the supermodels in fashion. They are not true supermodels," Romijn said of Jenner and Hadid. "I have been disappointed that fashion magazines have been supporting this trend of social media stars to set our style standards."
Jenner clearly disagreed. "If you choose to be a cyberbully, I'm going to stick up for myself," the Keeping Up With the Kardashians star wrote on her site.
"No one is trying to steal Stephanie Seymour's thing, or trying to be her," Jenner explained. "I guarantee you that she didn't imagine someone so publicly shaming her daughter when she made those comments about us being 'b*tches of the moment.'"
WATCH: Kendall and Kylie Jenner Model Their New Swimwear Line in Sexy Bikinis
"If people want to call Gigi and I supermodels now, it doesn't take anything away from supermodels of the past. Obviously, I have so much respect for those women, but right now, we're the models of this time," Jenner posted, shutting down the argument.
Before this big supermodel debate, Jenner opened up on her site in April, saying she'd love to follow in the footsteps of Gisele Bundchen and Cindy Crawford. See more in the video below.