Just to lighten up the mood, here are some Derogatory Words for your enjoyment .
Camel rider or Camel jockey, referring to archaic modes of transport.
Camel humper (implying Zoophilia) is a further variant.
Towelhead, Raghead or Diaperhead, referring to the head coverings worn by some Arab men.
Sand-nigger, an adaptation of an offensive term for American blacks and a reference to the fact many Arabs live in the deserts of the Middle-East. Related terms include:
Bint from the Arabic word for "girl" or "daughter," a derogatory term for an Arab woman, sometimes used in the UK for foreign women in general.