Similar to an upper decker, however the turd is taken in the upper tank of a gravity fed toilet (those which the tank is suspended 6ft up). When flushed the turd is sent flying down the pipe fed by gravity and makes a large splash similar to that of a log flume ride.
"Woah! Man I've just been log flumed!!"
by Josh Bird September 09, 2006
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what Adam Corrola likes to call a vagina.
"your mom is a beef flume."
by renee July 26, 2003
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To have a bowel movement in a bathtub.
Great day - parade, festival, funnel cakes, shopping.... and then the baby log flumed in the tub...and one of her sisters was in there too!
by Matt Lispen October 16, 2010
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The word "looming-flume" is pronounced loo-ming-floo-m. The "looming-flume" is when you are in a bathtub, and you suddenly have the urge to pee. It came out of nowhere. You do not want to get out of the tub, your so comfy.
E1: Hey! What did you do last night?
E2: I listened to music and had a warm bath. Halfway through, I had to face the Looming-flume.
E1: Yikes!

peeing flume bathtub bare urination why water
by hollabackgirlllll September 04, 2015
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The log flume is when you take a dump on someone's chest, and urinate on the chest shortly after. As you urinate the excrement will slide down the chest and stomach the same way a log would.
Ashley was an extremely kinky girl. Everytime I saw her she wanted me to give her the "Log Flume"
by CFP February 22, 2006
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