Examples from the Web for washday
They little thought that Monday would afterward be kept as washday.
But over here, with coal and wood even scarcer, we drill on washday, whether or no.The Stars & Stripes, Vol 1, No 1, February 8, 1918|American Expeditionary Forces
And Mrs. Ducker calls to see Ma nearly every washday now, just when she's busiest, and so Pa has to sit and entertain her.Anderson Crow, Detective|George Barr McCutcheon
It is washday all the week round, for a change of clothing is scarce among the poor.How the Other Half Lives|Jacob A. Riis
This made it washday for Elizabeth and the tribe, and presently all the lines were full.Dwellers in Arcady|Albert Bigelow Paine