I mean that literally. In Do they really think the earth is flat?, a few nutbags who believe the Earth is a disc discuss their ideas.
“People are definitely prejudiced against flat-earthers,” says John Davis, a flat earth theorist based in Tennessee. (source)
I presume (but I haven’t researched it) that Mr. Davis is also a fan of “intelligent design.”
The article contains an interview with scientific author Christine Garwood. She says that it is a “historical fallacy” that mankind once believed the earth to be flat, and only Christopher Columbus’ voyage changed that.
In fact, people have known since at least the 4th century BC that the earth is round, and the pseudo-scientific conviction that we actually live on a disc didn’t emerge until Victorian times.
Theories about the earth being flat really came to the fore in 19th Century England. With the rise and rise of scientific rationalism, which seemed to undermine Biblical authority, some Christian thinkers decided to launch an attack on established science.
And Rhonda Storms continues that attack.