Meaning:   study hard Example:    I have an exam tomorrow so I have to hit the books  tonight. A: Let's go shopping. B: I can't. I...

Meaning:   Something that is really easy to accomplish. Example: The exam was a piece of cake .

MEANING:   go to bed EXAMPLES:   I'm so tired. I can't wait to hit the sack .   I'm so tired. I can't wait to hit the hay . QUESTIONS:...