1. bollix up make a mess of, destroy or ruin
  2. block up render unsuitable for passage
  3. blockhouse a stronghold that is reinforced for protection from enemy fire; with apertures for defensive fire
  4. bellicosity a natural disposition to fight
  5. blacktop a black bituminous material used for paving roads or other areas; usually spread over crushed rock
  6. Pollachius pollack
  7. ball club a team of professional baseball players who play and travel together
  8. blackseed grass native to West Indies but common in southern United States having tufted wiry stems often infested with a dark fungus
  9. blackcap chickadee having a dark crown
  10. black spot any of several fungous diseases of plants that produce small black spots on the plant
  11. biologist a scientist who studies living organisms
  12. black sheep sheep with a black coat
  13. pillowcase bed linen consisting of a cover for a pillow
  14. billy club a short stout club used primarily by policemen
  15. black swan large Australian swan having black plumage and a red bill
  16. milksop a timid man or boy considered childish or unassertive
  17. biologism use of biological principles in explaining human especially social behavior
  18. pelycosaur large primitive reptile having a tall spinal sail
  19. black sage an aromatic plant with wooly leaves found in southern California and Mexico
  20. bollix make a mess of, destroy or ruin