a bone of contention: something which people argue and disagree over.
Examples:
in touch: having contact Examples of IN TOUCH He likes that his former players keep in touch and come back for alumni weekend. We have remained in touch throughout the years, through sad and happy occasions.
to kick the habit: to stop a bad habit Examples of TO KICK THE HABIT People have grown up reading paper books and will not kick the habit easily. The doctor advised the heavy cigarette smoker that her heart had become damaged and that she should kick the habit right away.
to throw the book at: to punish with full penalty, to be harsh on Examples of TO THROW THE BOOK AT The judge threatened to throw the book at me if I didn’t stop insulting the police officer. Because the criminal was a repeat offender, the judge threw the book at him with heavy fines…
to do over: to revise, to do againA noun or pronoun must separate the two parts of this idiom. Examples of TO DO OVER Who wouldn’t like the chance to go back to high school and do it all over again? You’d better do the essay over because it is written so poorly.
to make friends: to become friendly with others Examples of MAKE FRIENDS Once you’re done with college, it’s hard to make friends, but it isn’t impossible. The kittens approached each other tentatively, hoping to make friends.
to stick it to: to cheat, to take unfair advantage of Examples of TO STICK IT TO Be careful in doing business with that salesperson. He’ll stick it to you at the first opportunity. He was late, and the boss really stuck it to him.