1) Harmless flying mammal 2) Large Old World flying mammal 
any of numerous tropical bat species belonging either to the Old World fruit bats (family Pteropodidae), such as flying foxes, or to fruit-eating ... [4 related articles]
Fruit bat is British slang for a woman who prefers the company of homosexual men.
[n] - large Old World bat of warm and tropical regions that feeds on fruit
megabat noun large Old World bat of warm and tropical regions that feeds on fruit
any fruit-eating bat, esp. of the suborder Megachiroptera, of tropical regions throughout the Old World, typically having erect, catlike ears and large eyes adapted for night vision, and either tailless or with a rudimentary tail, the numerous species ranging in wingspan from 10 in. to 5 ft. (25 cm to 1.5 m).