There guys were drinking at a bar, checking out the women as they came in the door.

A girl comes in, nicely dressed, Ok body, pretty face,

One guy looks at the other, and says, "OK, 7.  Definitely a 7."
The other guy looks and says, "Yeah, OK, I'll go with 7."
He looks at the third guy and asks what he thinks.
He looks up, takes a sip of his beer and just says "4".
His two friends look at him strange.

Another woman comes in; dressed great; lithe, sinewy, body and classic eastern European looks.

One guy is enthusiastically says, "Oh, yeah.  9.  Has to be a 9."
The other guy chimes in with, "UM, maybe an 8.5, Not enough tits."
They look at their friend.
He looks up, takes a sip of his beer.  "5"
More strange looks, this can't be right.

Another woman comes in.  Impeccably dressed, playboy model figure, unbelievably pretty.

One guy is practically jumping up and down.  "10, come on, you gotta agree, you can't get any better."
The other guys is just as excited.  "Oh, yeah, that's a 10.  You look up 10 in the dictionary and her picture is there."
They looks at their friend.  He takes a sip of his beer.  "8"

Now these guys can't believe it.  They start arguing with him.  "No way"  "Are you drunk?"

He looks at his friends and tells them that they don't understand.  He is using a different scale than they are.

"What scale"

"The Budweiser scale"

"What the fuck is the Budweiser scale".

"That's how many Clydesdales it would take to pull her off my face."