'When?' — as a question about a person, a delivery, or a promised feature, from the aviation acronym into every group chat waiting for someone. The record's entry for the impatience that dresses as logistics.
Working definition, for the file: ETA? is what you call it once you have seen it three times in one day and twice from people who should know better.
'ETA?' sent to the record by a friend eleven minutes after the record said 'omw'. The record notes the two acronyms are a matched pair and that the second is always deserved.
The definition implies everyone used ETA? the same way. They did not. There were at least two camps by the second month, and they did not like each other.
What does it mean? Write it the way you would say it out loud.
