WordNet sense 1 (a person who does something thoughtless or annoying):

joker

WordNet sense 2 (a Eurasian republic in Asia Minor and the Balkans; achieved independence from the Ottoman Empire in 1923):

Republic of Turkey

WordNet sense 3 (an event that fails badly or is totally ineffectual):

bomb, dud

WordNet sense 4 (large gallinaceous bird with fan-shaped tail; widely domesticated for food):

Meleagris gallopavo