Today's idiom is " tag along "
Have you heard this before? Probably not. It's awesome! What does it mean?
To go somewhere with someone when you are not invited.
A. Good night. We're going to see a movie now.
B. Wait. Wait. Can I tag along ?
Junko often tags along with her older sister and her friends.
A. I do not want you tagging along tonight. I'm going out with my friends.
B. Okay ... but I don't have anything to do.
A. Why don't you call your friends?
B. They are all working tonight.