An afghan is a knitted or crocheted blanket. You might spend Friday night curled up on the couch under an afghan watching old movies on TV.
Many afghans are made from individual crocheted squares — called "granny squares" — stitched together into one big, multicolored blanket. Other afghans are striped or composed of large blocks of color. The connection of the name afghan with the people or country of Afghanistan is unclear, though some crochet and knitting fans believe that the original afghans, first made in the 1800s, were influenced by multi-colored blankets from that country.