shack-wacky
adj.— «People became “shack-wacky.”…They went insane with a frequency which would be significant if one knew what was meant by it.» —“Wisconsin Death Trip” by William H. Gass New York Times June 24, 1973. (source: Double-Tongued Dictionary)
Further reading
In New York and northern New Jersey, a children’s playground slide was once commonly known as sliding pond or sliding pon. The terms reflect the considerable influence of Dutch settlement in that area, the Dutch word baan meaning a “path” and...
Matt in Beloit, Wisconsin, reports that when he was in high school back in the 1990s, he and his friends used the word biscuit in phrases like I feel like a biscuit or I bet you feel like a biscuit now, the idea being that someone said something...