get after

Verb

 * 1) To move into action in pursuit of something.
 * He's wasting time at university not getting after his degree.
 * If you want to win, you've got to get after it.
 * 1) To move into action in attempt to catch or defeat another.
 * The defensive line needs to get after the quarterback.
 * Do you think the girl's going to ask you out? Get after her!
 * 1) To attempt to convince another to move into action.
 * Parents get after their children to do homework for the best.
 * Parents get after their children to do homework for the best.