Do You Know Modern Language?

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Across
  1. 3. Mental decline
  2. 5. among us bass boosted
  3. 9. ____ Toilet
  4. 10. A curviest of hindquarters
  5. 11. Fashionable clothing
  6. 12. Hat is a lie
Down
  1. 1. Like Income tax, but for friend food
  2. 2. Broken Electronics
  3. 4. 22x3+1
  4. 6. Art of swooning
  5. 7. ____ grindset
  6. 8. cringe, bizzare