Catch It Meaning

(idiomatic) be severely reprimanded, punished, or beaten

Example: Used other than as an idiom: see catch,‎ it.
1860, George Eliot , The Mill on the Floss
  "You'll catch it, you know," said Tom, nodding his head in an admonitory manner, and hesitating a little as he took the scissors.
a. 1887, George Bernard Shaw, An Unsocial Socialist
  If they beat us, we shall catch it, and serve us right.
2003, Sid Fleischman, The Whipping Boy, page 39
  I'll catch it for your mischief in running away. And I'll catch it again when the tutor claps eyes on the handwriting.