To become outdated or obsolete. (The "dodo" is an extinct bird.) The prevalence of cell phones today has caused landlines to go the way of the dodo.See also: dodo, go, of, way
go the way of the dodo
and go the way of the horse and buggyFig. to become extinct; to become obsolete. The floppy disc has gone the way of the horse and buggy.See also: dodo, go, of, way