And the ultimate disrespect -- at least according to Dickinson -- was when Tyra doled out McDonald's for her staffers' as Christmas presents.
Dickinson's rant went down on Behind The Velvet Rope with David Yontef, in which the self-proclaimed first supermodel claimed the ANTM winners weren't actually chosen by the judges but were allegedly picked by Cover Girl.
"So when I found that out, I was like, kind of reticent to even speak up anymore because they weren't taking my valuable words of wisdom and applying it to who should win or who should lose," Dickinson told Yontef.
Saying it was "really tiring" to work such long hours on ANTM, the star said it was the polar opposite when she did a stint on RuPaul's Drag Race.
"I did a stint on RuPaul. That was fabulous," she recalled, before trashing Tyra for allegedly handing out fast food, instead of pricey gifts, for the holidays.
"They [RuPaul's Drag Race] treated us with respect, not giving us hamburgers or, or McDonald's Whoppers for Christmas presents like Tyra," Dickinson scoffed.
Clearly, the catwalk vixen doesn't know her fast food because she has longtime rivals McDonald's and Burger King confused. One is famous for their Big Mac, and the other is notorious for serving Whoppers.
That didn't stop her from repeating the fast-food mistake or speaking her mind about what she feels Tyra should have given her.
"McDonald’s Whoppers as Christmas Presents. Yea," Dickinson joked, later adding, "How hard I was working, I should have had a gold Rolex or something."
Dickinson also had a lot to say about today's so-called models like Gigi Hadid and Kylie Jenner.
"I mean you have to have personality to be on television," she insisted before taking a jab at the youngsters.
"There have been several models that have gone on different jobs. Rene Russo, who's fabulous, friend of mine, have gone on to do other jobs on, in front of the camera because they're able to speak. Is Kylie Jenner a good speaker in front of the camera? I don't know. Is Gigi Hadid a good speaker in front of the camera? I don't think so," Dickinson stated.