It’s from dudes eating each other’s BUTTS out.
Gross, huh..?
In SF a decade or so ago I remember there was something medieval going around, CHOLERA, or something.
And my boss, who was a German MD/PhD, was screaming about how it was “cuz dudes are eating each other’s butts out”.
Typically he was uber academic and cerbrial so when he laid it out so plainly and in so few words I was shocked to the core.
Did I doubt him..?
Not even one tiny bit.
That paints a picture.
:-|