scat       
 exclamation  informal uk/skæt/ us/skæt/
 (驱赶人或猫等动物时用)嘘,走开
said to an animal, especially a cat, or to a person to make them go away quickly
  "Scat!" he shouted, bending to pick up the letters the cat had knocked all over the floor. 
 scat  
noun uk/skæt/ us/skæt/
  (SINGING)      
 [ U ](爵士乐中模仿乐器声的)拟声歌曲;拟声唱法 
a type of jazz singing that uses words with no meaning
  Scat was perfected by Ella Fitzgerald.
 He added bits of carefully contrived scat phrasing.
 - More examples
 - In a flash, according to jazz historians, "scat" was born.
 - Scat, like jazz, is recognized as one of the great innovations in the history of 20th century popular music.
 - Watkiss has taken to incorporating complex classical Indian stylings into his rapid-fire scat jazz vocals.