What is キリッと一発?
「キリッと一発」 is a phrase used when something is decisively decided, or when something has been perfectly settled. On the internet, it is mainly used in game broadcasts and bulletin boards. It is used especially at the moment of a one-shot gag or surprise.
Usage Examples
「His joke was a decisive one-shot that made everyone laugh.」
「The answer to the test came out decisively, and I was relieved.」