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1.
Phrase that means perfectly dressed in the most fashionable attire. Would most likely be used in evening attire fashion such as being dressed for a formal occasion in which a person would dress their best to command as much respect and attention as possible.
We could tell the black tie event was the most important of the social season. Everyone was dressed to the nines.
by Cliff96 May 15, 2006
 
2.
When poor people put on their sunday's best from 1984, to go clubing in 2006 and work it like they are a perfect ten. Poor man's "good" clothes.
Girl 1: Hey Girl!, Look at you, all dressed to the nine!
Girl 2: You know it!
Girl 1: All right now!
by LynnWhittman July 13, 2006