1. I can't believe that wacko tried to convince me that the moon landing was faked.
2. That guy is a total wacko, always coming up with these crazy conspiracy theories.
3. Don't listen to that wacko, they're just spouting nonsense.
4. I saw a bunch of wackos protesting outside the government building yesterday.
5. My neighbor is a real wacko, always doing weird things like collecting rocks or talking to his plants.
6. The wacko preacher on the street corner was shouting about the end of the world.
7. I don't want to go to that party, it's hosted by a bunch of wackos.
8. The wacko scientist claimed he could turn lead into gold.
9. That wacko artist's latest exhibit is just a bunch of garbage glued together.
10. The wacko comedian's jokes were so outlandish, people weren't sure whether to laugh or be offended.