(informal)Used to express that one cannot take a suggestion seriously
2006, Ralph Cotton, Gunfight at Cold Devil
Humiliated, Wood said, "I shouldn't have brought it up. I'll collect that money without you. Me and Carney will take care of the ranger."
"Carney Blake? Don't make me laugh." Rose chuckled, his hand still extended for payment. "He's been down drunk all summer. He'll be lucky if he doesn't shoot himself."