Top definition
Late fall, winter and early spring in the upper Midwest. The name derives from the off-white sky, horizon and ground that makes delineating the three virtually impossible. One feels that they are trapped inside of a table tennis ball.
"I can't stand this weather. Everything is coated with the same awful color."

"That's what you get this time of year in Cleveland. What did you expect? It's ping pong ball season."
by Cirdellin January 04, 2010
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