What is "churners"

Usage examples of "churners".

Spaceport Vegas featured corkscrew roller coasters, dive-bombers, scramblers, whips, and the other usual gut churners, all tricked up with lavish science fiction facades, gimmicks, and names.

By the second day even the churners looked away as he walked past, and the butchers who arrived to dicker for fresh meat seemed a little more distant.

Fafhrd still couldn't see what they were running from, and once more he thought of an army of invisibles—after all, he had only to imagine Ghouls with invisible bones—but then he noted that most of the shriekers and churners were looking downward toward their feet and the cobbles.

Fafhrd still couldn't see what they were running from, and once more he thought of an army of invisibles -- after all, he had only to imagine Ghouls with invisible bones -- but then he noted that most of the shriekers and churners were looking downward toward their feet and the cobbles.