Hang up Definition 1 of 4Pro Tip 1/2Phone Etiquette Ending a call abruptly can be rude. Try to conclude politely. Before you hang up, say 'Goodbye' or 'Talk to you later.' Pro Tip 2/2Emotional Impact 'Hanging up on someone' often implies anger or frustration in a conversation. He was so upset that he hung up on me mid-sentence.