Joe Biden and Girl-Girls and Girl-Boys

Joe Biden delivers again.

LEE'S SUMMIT, Mo. -- Joe Biden greeted a crowd primed for the home stretch of this long campaign with as much energy as he's had in the last two months on the trail as well as some typical Bidenese.

Telling voters in this swing state that "change is on the way," the Democratic vice presidential candidate offered one of his now-expected random introductory tangents.

The latest was about his sister, Val, his wife Jill, and Missouri Sen. Claire McCaskill, who introduced the Bidens at the rally of 1,100 people in the gym at Longview Community College.

Biden called his sister a "girl-boy," meaning a tomboy, and then explained that girl-boys are softer than "girl-girls."

"You know why I think Jill likes Claire McCaskill so well, Senator McCaskill? Jill is one of five sisters, Claire is one of three sisters. And I tell you what, you women raised with sisters are different than women raised with brothers," Biden said as both women joined him on stage.

"My sister is smart, runs every one of my campaigns; is beautiful; graduated with honors from college; is homecoming queen. But she's a ... she is what I call a 'girl-boy' growing up, you know what I mean?"

"And I tell you what? Girl-girls are tougher than girl-boys," he said. "But there's one important thing I noticed. The great thing about marrying into a family with five sisters, there's always one that loves you. 'Cause you can count on splitting them a bit. You know what I mean?

"I shouldn't be going off like this, but -- hey, folks, 37 more hours, 37 more hours," he then said.

In his speech, Biden followed with a self-described Freudian slip, in which he confused John McCain and George Bush.

Biden argued that electing McCain would mean four more years of Bush administration policies, but as is always the case with the Delaware senator, a routine line delivered hundreds of times on the trail can still be an adventure.

"In the most recent debate between John McCain and Barack Obama, John McCain felt the need to say to Barack, to the commentator and to all America that he was not John McCain," Biden said in the slip-up. "I mean, he was not President Bush."

Why does Biden get a pass on his loony remarks?

Sure, it's entertaining. Biden is good for a laugh, but is this gaffe a minute guy fit to be the vice president of the United States?

Girl-girls and girl-boys and sisters and brothers...

He's goofy.