Bat

The bat is one of the forms vampires transform themselves into whenever they need to go places quickly. The creature looks like something from hell...... a large rat with wings made from stretched skin between creepy looking giant fingers. Ironically if you have skin between your toes you suddenly become comical. See the Duck.

http://xstretchmarks.com/how-to-get-rid-of-stretch-marks/ have been trying to convince people bats are actually a mammal (of the order Chiroptera), but it's been scientifically proven that all naturalists are minions of Dracula, so they can't be trusted. Bats are one of the most successful group of mammals with around 1100 species, only to be trumped by the mighty rodents.

Trivia

A bat is half a brick. so when someone says brick bat you'll know what it means.

A bat is also something you use to play cricket or table tennis.