"When r u getting in?"

ETA

This three-letter abbreviation tells you the expected time something or someone will arrive, often used in travel or logistics.

The clue mimics a casual text message asking "When are you getting in?" The answer, "ETA," stands for "estimated time of arrival," which is exactly what someone would reply with in that situation. It’s a straightforward abbreviation often used in travel or informal conversations. The wordplay relies on recognizing the common shorthand for a question about arrival time.