oh my head 

Exclamation, esp. N.E. coastal. Used to emphasize a point.

"Oh my Head, that's some smelly gurry!"

oh my head by Alexander Thompson March 1, 2004

oh my head 

basically a phrase instead of "oh my gosh" etc. it's rather fun to say, and it sounds cool. besides, if something astounds you, your head is busy thinking so it makes sense

Oh my head! You have the coolest shoes!

oh my head by Carrot December 11, 2003