1953 Baseball Digest Feb. 8/1: Curt heard via the jungle telegraph system that he might be sprung in time for the opening of the baseball season.at jungle telegraph (n.) under jungle, n.
1959 Baseball Digest XVIII:2 52/1: Flakey: origin is unknown, but it has replaced wacky, squirrely and the like in the ‘inside’ vocabulary.at flaky, adj.
1960 Baseball Digest May 58: This whackiness, intended or otherwise, has helped the baseball fan not only to survive but to keep coming back despite awesome obstacles and deterrents.at whackiness (n.) under whacky, adj.