Something that is twice as large as what you would expect it to be. Disproportionatly large. Normally used in relation to fruit, especially melons.
Wow, that watermelon is twice as big as what I would expect it to be! It truly is melonic!

That fifty foot tall statue of a cantaloup is of melonic proportions!
by Andrev Jakstone October 03, 2005
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Melonism is a religion that is equal to communism and melon
INotDumb is a creator of Melonism
by INotDumb December 16, 2019
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A trigger word in Façade, a artificial-intelligence game test, which makes Trip react like you said something offensive, mostly leading into kicking you out.
Trip: Hi! How are you!
Kha: melon
Trip: You know what? I think you should leave. We'll be fine, just GO.
by outformyown February 02, 2012
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