The sexual act of rubbing butter in a female partner's genitals (preferably one of your cousins or sisters), having her urinate it back into your mouth, then regurgitating it back into her anus and using it as anal lubricant
"Hey dude last night I did an Alabama butter churn with my sis"
"This is why we don't talk anymore you sick fuck"
"This is why we don't talk anymore you sick fuck"
by NotNath April 15, 2021
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