one of those things noun2 •An unfortunate, but unavoidable, event.It was just one of those things: I spent an hour in traffic and then found that the shop was closed. •A strange or surprising event for which an explanation is unavailable or not worth pursuing.The moral to this story is that the good research scientist pays strict attention to any peculiar event and does not shrug off a mystery as just "one of those things." — 1959