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Meaning of lowdown

low•down

Pronunciation: (n.lō'doun"adj.lō'doun'), [key]
— Informal. Informal.
—n.
  1. the real and unadorned facts; the true, secret, or inside information (usually prec. by the): We gave them the lowdown on the new housing project.
—adj.
  1. contemptible; base; mean: a lowdown trick.
  2. low, esp. socially or morally; degraded.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.