The idiom "back to the drawing board" means starting over, going back to the beginning of a project or task, or having to reconsider an idea because it didn't work out as planned. It can also imply frustration or disappointment when plans don't go as expected.

The idiom "no dice" is used to indicate that something is not going to happen or that an idea is not feasible. It can also be used to express disappointment or frustration when plans do not work out as expected.

The idiom "get off" can have multiple meanings depending on the context it is used in.

• To dismount or alight from a vehicle or horseback.
• To leave a situation, place, or relationship.

The idiom "drop by" means to visit someone unannounced or unexpectedly. It is a casual way of inviting oneself to someone's home or workplace without prior arrangement.

The idiom "keep your chin up" is used to motivate someone or encourage them to stay positive during a difficult time. It means that one should maintain their dignity and hold their head high in the face of adversity.