On Sat, 23 Apr 2005, Beverly Flanigan wrote: > My father (b. 1900, Minnesota) said the same thing (chase, that is). Never > heard "keep a cow," but might there be some connection with the Simpsons' > "Don't have a cow"? I never watched the show, so I don't really know what > the phrase means. > In the mid-1960s around Chicago, we said have a cow to mean have a fit.