"L.H.O.O.Q.," or, "Leo, Mona, Marcel, and Me"

Mona!
Mona! 
Mona!

What has Dada done?
He spits on your face;
Taunts! Mocks!
Your glory... undone!

But Mona,
What's that you say?
It cannot possibly be true!
That vulgar phrase--
L.H.O.O.Q.