Very fast. Similar to the speed that my father had when going to the store to get milk. It's only beaten by the speed of a fast red car from some movie...
"Where'd dadgo??"
"He went to the store to get milk"
"But I didn't even get to say goodbye..."
"I know... Gheto Speed..."
A sexual innuendo regarding positioning of one's facial area on or around a female's pelvic area. It is a reference to the movement of one's tongue over said area. The reality is it isn't really anything except a prelude to falling off of a chair and injuring once ankle.
When she said gettodachoppa she added an extra leg kick for emphasis and thereby disabled any sense of balance that I may have had and subsequently knocking the chair over.