You meet a girl called Omera and you've met one of the nicest people in the world. Not to mention her amazing personality and impeccable ability to improve the moods of all the people around her. Be sure to keep an Omera around.
"Who is that girl over there? Is her name Omera by any chance?"
"Yes it is. She's one of the nicest and most humble people I've ever met."
OMGraham is a term of expression used when one is struck by the dreaminess of a tall, handsome, South African gentleman. It is also synonymous with OMG(osh)/OMG(od).