50. Act naturally
49. Found missing
48. Resident alien
47. Advanced BASIC
46. Genuine imitation
45. Airline Food
44. Good grief
43. Same difference
42. Almost exactly
41. Government
       organization
40. Sanitary landfill
39. Alone together
38. Legally drunk
37. Silent scream
36. American history
35. Living dead
34. Small crowd
33. Business ethics
32. Soft rock
31. Butt Head
30. Military
       Intelligence
29. Software
       documentation
28. New York culture
27. New classic
26. Sweet sorrow
25. Childproof
24. "Now, then ..."
23. Synthetic natural
       gas
22. Christian
       Scientists
21. Passive aggression
20. Taped live
19. Clearly
       misunderstood
18. Peace force
17. Extinct Life
16. Temporary tax
       increase
15. Computer jock
14. Plastic glasses
13. Terribly pleased
12. Computer security
11. Political science
10. Tight slacks
 9. Definite maybe
 8. Pretty ugly
 7. Twelve-ounce
       pound cake
 6. Diet ice cream
 5. Rap music
 4. Working vacation
 3. Exact estimate
 2. Religious tolerance

And the Number one top Oxymoron: