Your daughter and the Moor are now making the beast with two backs
The phrase "Your daughter and the Moor are now making the beast with two backs" is a line from William Shakespeare's play Othello. This line is spoken by Iago, the villain of the play, as he manipulates Othello's father-in-law Brabantio into believing that his daughter Desdemona has been unfaithful to him with Othello, a Moorish general in the Venetian army.