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An impromptu gathering of people (usually otaku) to engage in group masterbation while watching hentai films.
After not seeing his Otaku friends for over 3 years they went straight from the airport to the watermelon party.
by whereisroom3204 March 02, 2015
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A watermelon party Is a gathering of friends partaking in enjoying delicious watermelon and just having INNOCENT fun.
Hey bob wanna come over for a watermelon party?
by Edub1234 September 28, 2019
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