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A phrase used during a gossip session when the subject of gossip is seen approaching, or caught within ear shot of your conversation to cover the real content of the story.
Sheri - "Did you see the jeans Amy was wearing yesterday?"

Chris - "Yeah, seriously, a 9 inch zipper...its not 1985 anymore."

(Amy walks in room)

Sheri - "Oh, but that was yesterday...hey Amy, what's up?"
by chess5 May 14, 2010
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