Wiktionary
vb. 1 (&lit catch it English) 2 (context idiomatic English) be severely reprimanded, punished, or beaten
WordNet
v. receive punishment; be scolded or reprimanded; "I really caught it the other day!"
Usage examples of "catch it".
There's a dangerous lunatic in the church, and he must go immediately and catch it.
He was a summer fixture, his voice as much a part of the game to Eddie then as Mel Alien's later became: Tony Tracker, large but somehow ghostlike, his white shirt glimmering as summer dusk drew down and fireflies began to loom the air with their lace of lights, yelling: 'You got to get under that bawl before you can catch it, Red!
In the meantime, England and France also seemed to be eyeing California, held so feebly by Mexico that it looked to be ripe and ready to fall into the hands of whomever was there to catch it.
Designed to destroy anything it can catch and to outrun anything that can catch it.