Top Definition
1) To have an orgasm as a result of or during the act of defication.

2) An assgasm caused by taking a monster dump.

3) An orgasm had by a very homosexual individual who is brought to climax by the feeling of every dump he takes.

4) An orgasm had by a female who enjoys assplay so much she orgasms with every dump she takes.

5) If for some reason the smell of a dump triggers an orgasm, this is also a dumpgasm.
"Is that a chocolate donut with white frosting in my toilet? Or did someone just have a dumpgasm?"
by ev28 July 31, 2006
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