Oh, no, you don't --- nunna the ol' 'camel and Arab' routine!
What you disgustedly snort to someone who is selfishly trying to take up more than his share of available space, such as in a bed, on a couch, in a passenger's seat, etc.
When Chief Tecumseh was negotiating with General Harrison, he crowded Harrison toward the end of the bench they were sitting on. When Harrison made a "Oh, no, you don't --- nunna the ol' 'camel and Arab' routine!" type of protest, Tecumseh smiled knowingly and replied that he was trying to illustrate to General Harrison how his people felt about being pushed off their tribal lands by the English settlers.