We Need to Talk - What Does it Mean?

we need to talk

1. You are screwed.
2. Is your clue that you need to act quick.  If you're good you'll be able to dump her before she dumps you.
3. Actually means, 'I need to talk, You better listen'. Generally pronounced by a female voice.
4. What is usually said at the office before a long-winded speech by the boss. Is often followed by "Your services are no longer needed."

from UrbanDictionary.com
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