It's a harmless white blob, but mayonnaise is a terrifying no-no in the Here Comes Honey Boo Boo world.

The TLC show has a Halloween "Holladay" special airing Sunday, January 6, and Us Weekly posted a clip showing the kids trying to cure Mama June of her extreme fear of mayo. "The reason why is because when I was growing up, the babysitter I had, we ate mayonnaise sandwiches for breakfast, lunch, dinner, snack,” Mama June said before getting grossed out. “I can't talk about it. It is making my flesh crawl." She said she will eat potato salad or tuna salad with mayonnaise if someone else makes it and she can't see the mayo.

One of her daughters, Jessica "Chubbs," said, "I think it's stupid that you're scared of of mayonnaise, Mama. I mean seriously, it's mayonnaise. It's white, and it's mayonnaise. C'mon. That's like ketchup, but it's just white." Chubbs said she doesn't eat mayo herself because she's a vegetarian. Watch the video below for a full discussion of how "marannaise" is not actually a meat.

Sources: TLC, Us Weekly

Credit: TLC Photo: Here Comes Honey Boo Boo Sneak Peek: Why Mama June Is Scared of Mayonnaise (VIDEO)