“They don't want us to give out the exact location in case the knucklehead tries to chase us down and get in the way.”

“Sure, I love the little knucklehead, but frankly, I wouldn't lend the guy a nickel.”

“You're rafted up with other boats at your favorite swimming hole, and all of a sudden some knucklehead comes by throwing a supersized wake.”

“If that's the case, then I hope they're cuter than these two knuckleheads sitting in front of me.”

“Of course, there were a few knuckleheads, but I was prepared to take care of myself.”

“I'm sure the crowd has a proportion of knuckleheads who still could turn nasty.”