What is "crawliest"

Usage examples of "crawliest".

He tucked himself into a fork the way he had been taught, and he passed the crawliest, tickliest night he had ever known.

Harrison even told the story sometimes right in front of Lolla-Wossiky, and the one-eyed drunk just nodded and laughed and grinned and acted like he had no brains at all, no human dignity, just about the lowest, crawliest Red that Hooch ever seen.