60s-70s Sammy Davis Jr Era Slang

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Across
  1. 2. Fake talk; nonsense
  2. 4. Excited
  3. 7. Amazing; unbelievable
  4. 8. Stylish and attractive
Down
  1. 1. Serious or deep
  2. 3. Leave fast
  3. 5. Smooth or cool
  4. 6. Cool in a psychedelic way