get_it
1. [ verb ] understand, usually after some initial difficulty
Synonyms: catch_on get_onto latch_on cotton_on twig get_wise tumble
Examples:

"She didn't know what her classmates were plotting but finally caught on"

Related terms: get_the_picture
2. [ verb ] receive punishment
Examples:

"You are going to get it!"

Similar spelling:   get_at
  get_out