Joe Biden is an escaped clown from the Ringling Bros, Barnum and Baily Circus.
The perfect VP to the most corrupt and incompetent President we ever had. They make a great pair.
Well, at least he has entertainment value.
Biden used an old time term of the meaning butt friends.
Butt friends means 2 close friends who are considered inseparable.
I don't think that Biden has any clue or even knows the homosexual connotations of it.
Just like the people of the Tea Party did not know about teabagging.
I've never heard anyone use that term unless they mean "BUTT" buddies, if you know what I mean.

He's got great entertainment value anyways.