Nudnik - n. U.S. colloq. Esp. in Jewish usage: a pestering, nagging, or irritating person
"But speaking here in my capacity as a polished, sophisticated European as well, it seems to me the laugh here is on the polished, sophisticated Europeans. They think Americans are fat, vulgar, greedy, stupid, ambitious and ignorant and so on. And they've taken as their own, as their representative American, someone who actually embodies all of those qualities."