Use "whacko" in a sentence

1. "It's his religion, it's all whacko about sex

2. He was doing seventy-five kilometres an hour when he suddenly realized that there was a man, “some crazy whacko,” he blurted angrily

3. “The whacko that sold me this scam said that by putting us in orbit there wasn’t

4. Until he’d listened to those tapes and read the reports on her case, Nick had assumed they were dealing with a simple whacko