Loosey-goosey

They said that he couldn't hit International League pitching because he was too loosey-goosey at the plate.

“All these other guys are scared to death,” the pinch-hitter kept telling himself as he walked towards the plate, “I’m loosey-goosey, I’m loosey-goosey, I’m loosey-goosey.”

"Everything seemed to be real loosey-goosey," Mr. Williams said. "[…]I had lunch with him three times, and each time he said, 'Oh, I forgot to bring the papers.'"

I find the description wonderfully familiar, less the droogish quality, than the loosey-goosey opportunism.