If I could rate ‘em on a scale from one to ten
I’m lookin’ for a nine, but eight could work right in
A few more drinks and I might slip to five or even four
But when tomorrow mornin’ comes
And I wake up with a number one
I swear I’ll never do it anymore
These lyrics reveal “beer goggles” to be an Overton Window of acceptability that slides downward with the number of drinks; it also quantifies it, but specifically only for the author… YMMV.