DP or "Displaced Person" was a designation given to millions of Post-WWII civilian refugees and Nazi slave laborers. The fortunes of war had left many homeless and scattered through out Europe, far from their native countries and with no form of identification. They were designated DPs and placed into DP camps to await processing. Those from nations occupied by Soviet forces were generally allowed to immigrate to North America or Palestine.

Many in the post-war generation came to use it as an insult to describe post-World War II European immigrants of Southern Europeanand Eastern European origin.

Child: Gwamma, did you see my doggie Mr Muggles?
Grandmother: I'm sure those god damn DPs who live on the other side the alley ate your dog!