The Re-echo Club: as by Dante Gabriel Rossetti (Purple Cow)

The Purple Cow strayed in the glade;
(Oh, my soul! but the milk is blue!)
She strayed and strayed and strayed and strayed
(And I wail and I cry Wa-hoo!)

I've never seen her--nay, not I;
(Oh, my soul! but the milk is blue!)
Yet were I that Cow I should want to die.
(And I wail and I cry Wa-hoo!)
But in vain my tears I strew.