This is commonly used as a text to imply a speech impediment when referring to "my head". Often used as an exaggeration toward an odd topic, or in reference to a strange or "out there" concept.
P1 - "I was just reflecting on the fact that this year in 2011 we're going to have 1/1/11, 1/11/11, 11/1/11, and 11/11/11. Crazy right?"
P2 - "You think that's crazy? Take the last 2 digits of the year you were born, plus the age you will be this year and it WILL EQUAL to 111! No joke."
P1 - "Awww... Mah Hedd!"