(idiom) goodbye
Example Sentences:
Student 1: I am going back to Brazil.
Student 2: I am going back to Korea.
Student 1: Good luck to you! I hope we will meet again soon!
Student 2: So long!
Have fun on your vacation! I hope you enjoy Mexico! So long!
Notes:
so long is used as a friendly way of saying goodbye.
Media:
Similar idioms: