Mother of Brian.

Source: Day by Day brought to us by Chris Muir

Hehehe.

Chris Muir sees a similarity between the splodey dope and Brian Cohen's mother. FYI, if you are not a Monty Python fan, the Brian Cohen I refer to here is the main character in Monty Python's movie The Life of Brian.

BTW, you can always scroll to the bottom of Blogger Beer for the latest Day by Day cartoon.