Definition:
To straighten up or tidy something, usually a desk or living space.
Usage:
"Go redd your room, we're having company tonight."
Explanation:
This is not a neologism - it's a rather old word that has become obsolete in most dialects of English.
Trivia:
As a child I had my own folk etymology - I assumed that it was the same root as the adjective "ready," e.g. "Go [make ready] your room, we're having company tonight." I suspect that this is, in fact, true.
