the.com/mudcat

A catfish that treats clear water as a personal insult.

means A large freshwater catfish (especially the flathead or channel catfish) that lurks in murky river bottoms, also used as a nickname for people from catfish-rich river regions.

from Straightforward American compound: 'mud' plus 'cat,' from 'catfish,' so named for the whiskered, bottom-dwelling fish's habit of sulking in muddy river and lake beds. The term swam into regional English use in the US, especially around the Mississippi and other catfish-heavy waterways, and later got hooked as a nickname for locals and sports teams in those same muddy-watered places.

actual name
flathead catfish, mostly
habitat
murky river bottoms, snags, undercut banks
size
can top 100 pounds
hunting style
ambushes prey by smell, not sight
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