Watermelon Party 

The Greens political party.

Reference to the fact that when you get past the environmentalist green 'skin' of the party, they are nothing but a bunch of socialists.

Person 1: Who are you voting for?
Person 2: The Greens.
Person 1: Seriously? The Watermelon Party? You know they're a bunch of socialists, right?

Watermelon Party by Worst Governor Andrew Cuomo February 19, 2021

Watermelon Party 

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?

Watermelon Party by Edub1234 September 28, 2019

Watermelon Party 

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.

Watermelon Party by whereisroom3204 March 2, 2015

Watermelon Party 

A stab at green politics, which is nothing but a socialist sham disguising itself under the guise of green politics. It's just like a watermelon, green on the outside, red on the inside.

Voter #1: I'm about to cast my ballot for the green party.
Voter #2: You seriously about to vote for those socialist ecoterrorists in the watermelon party?

Watermelon Party by John Doe 09378 September 26, 2020