Top Definition
A dumphump occurs when you bang a chick while you're taking a dump. Shitting, wiping your ass, and then banging while sitting on the toilet is not considered a dumphump. You have to be in the process of shitting while banging for it to be considered a true dumphump. If you can time it out so that you blow a load as a huge turd is coming out, that feels great. A dumphump does not have to be performed on/over the toilet. You could fuck your girlfriend from behind and shit on your bedroom floor while doing it, and that would be considered a dumphump also. Basically, if you're shitting anywhere, while banging a chick, that is a dumphump. It's a little known fact that 32% of women have more intense orgasms when they are breathing in the smell of shit. If you haven't tried the dumphump yet, try it soon.
Todd: "Did you nail Rebecca yet you dirtbag?"
Ron: "I did more than bang her little guy, I dumphumped her at that frat party."
by John Planet August 12, 2008
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