Freki and Geri are the two wolves of the Norse god Odin. Freki (also spelled "Freke") means "ravenous," and Geri (also "Gere") means "greedy." The wolves lay at the feet of the Allfather as he sits upon his throne in his hall in Asgard, surveying the nine worlds. When Odin dines with the slain warriors in Valhalla, he eats nothing, subsisting solely upon honey-wine. Instead, he hand-feeds the meat from his plate to Freki and Geri.
Snorri Sturluson described this in his epic poem "Gylfaginning."