Top Definition
The act of having an extremely intense orgasm by watching favorite porn scenes while masturbating vigorously. Usually for up to an hour or more to build to eruption
1. I had a porngasm last night and knocked the laptop off the bed.
2.I watched that video of us and had a such a strong porngasm I swear I could taste you on my cum.
by blkprep May 21, 2008

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