Arise, arise;
Awake the snorting citizens with the bell,
Or else the devil will make a grandsire of you.

– William Shakespeare

Othello, Act 1, Scene 1. Iago shouts this out in the street at night in front of Brabantio’s house. Using a metaphor, he suggests to Brabantio that the "devil" Othello will make his daughter Desdemona pregnant, so that Brabantio will be grandfather to an evil devil child. The malevolent Iago is displaying his racial prejudice here, as he attempts to whip up a father’s anger against his daughter’s elopement with the black Othello.