unki イディオム

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junkie

"a person who does junk or drugs; skids" """What is a junkie?"" ""A person who uses bad drugs."""

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dunkin'

punking out

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Dunkirk spirit

(UK) Dunkirk spirit is when people pull together to get through a very difficult time.

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unkindest cut

unkindest cut
The worst insult, ultimate treachery, as in And then, the unkindest cut of all—my partner walks out on me just when the deal is about to go through. This expression was invented by Shakespeare in describing Julius Caesar's stabbing to death by his friends in Julius Caesar (3:2): “This was the most unkindest cut of all.”