A yellow Igger. Offensive term used against Asians, as they are usually said to have yellow skin. If they're also a dumbass you might then call them a Yigtard. Used alongside Agger (for Arabs), Wigger (for white people) and Nig*** (do I really have to explain this one?).
Asian: Look at this wigger
Wigger: Shut up, yigger!
Asian: *beats the shit out of him*