When a female gets oral sex while taking a dump in the upper tank of a toilet.
Itâs like a female blumpkin mixed with an upper decker.
Sara gave me a blumpkin last week. I returned the favor by hooking her up with a dirty fish tank in the restroom at the mall.
Taking a shit in the top part or tank of the toilet.
He pissed me off so I did a upper decker in his bathroom.