When your taking a shit in the tank of a toilet(upper deck) while getting a blow job(blumpkin).
I never knew I could get an upper dumpkin in the church bathroom.
The act of having vaginal sex while relieveing oneself of fecal matter.
"Dood, I was taking this huge dump the other day, when this chick came in and just rode my cock! It was amazing!" Paul "The Sodomizer"
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Colorful term for little pebble turds; sounds like dropping a handful of marbles in the toilet. see also- dumpy lumpkins
lumpy dumpkins are not just for breakfast anymore.
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on the phone with your lover and taking a dump at the same time.
I was taking a "(dumpkin)"while on the phone with my lover.
A man named Dan with orange hair.
Wow Dan, that's quite the dumpkin!
When you have sex on a toilet while taking a dump.
Dude did you hear Jimmy’s chick broke in on him mid shit for a dumpkin???
n. a fat, round protruding lower abdomen
"Oh my, that lady has a really big dumpkin!"