Couscous(from Maghreb Arabic kuskusu, which is from Tamazight seksu) is a food which consists of grains made from semolina which are about 1mm or 1/16th inch in diameter (after cooking).
Couscous is traditionally served under a meat or vegetable stew. The dish is the primary staple food throughout the Maghreb; in much of Algeria, eastern Morocco, Tunisia , and Libya it is simply known as ta`aam طعام, "food". It is popular in the Maghreb the West African Sahel, in France, and parts of the Middle East, it's also very popular among Jews of North African descent. But this speciality is from a Berber origin. In the United States, the food is often a source of humour, as many consider its reduplicative name to be inherently funny.
I love saying 'couscous' :)
When cooked couscous has a texture somewhere between American grits and Italian risotto.