beastie  
noun [ C ] uk/ˈbiː.sti/ us/ˈbiː.sti/
  (INSECT)      
  UK informal昆虫 
an insect
  Keep still, you've got a beastie in your hair. 别动,你头发里有个小虫子。 
   (ANIMAL)      
 Scottish English or humorous(野生)动物 
an animal
  A lot of beasties live in the forest. 森林里生活着很多动物。 
 These otters are particularly vicious beasties, with very sharp teeth. 这些水獭长着锋利的牙齿,特别凶狠。