This term is used to describe people who like to worry about anything and everything. For the most negative fatalistic pessimistic people in the world.

They worry for events that are ancient history as soon as they find out about them because that's all they know how to do in life is worry and fret and ruminate; it's so pathetic.
"Don't tell Dad you walked across the Frozen River back in 1985 because he will Retro-Worry!"
by Karfentanil February 19, 2021
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