What is Brown Magic Marker?
1.
(BMM) The brown streaking marks left in a toilet bowl after flushing large amounts of soft fecal matter. Usually the result of eating burritos and drinking multiple beers.
"Ricardo is gonna kill me. I brown magic markered his toilet. Fuck! Hand me a towel"
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(n) The practice of rinsing the vaginal vault with a carbonated beverage, such as a cola drink. The can or bottle is usually agitated vi..