To be at an extreme state of intense hunger. Derived from Starvin' Marvin, the famished little african boy from the TV show South Park.
Man... I'm marvin hardcore from some food right now... I'm about to go look through the trash.

Thank god for this cheezeburger! I'm MARVIN!
by TheChrza January 5, 2011
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The cousin of a famous individual

First found in Back to the Future (1985) with Marvin Berry calling his cousin Chuck Berry to inform him of Marty playing a "cool sound"
George? This is Marvin!
Marvin Clooney! Your cousin! Now listen--I think this is the film you're looking for
by nxaw91 December 11, 2010
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IF you have a Marvin, it is to show your bra as a shirt maybe a very lowcut

The lower body of equivalant is a chuck
This can be used as a sublte way of telling a friend that their on show
Girl 1: *talking*
Girls 2: You've got a marvin
by mmmmmmmmmorning January 1, 2011
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Marvinism is a religion founded as of the late 2017 era. Followers of Marvinism are called Marvinists, and belong in The Holy Marvinity. Marvinists follow their God, Marvin. He is, surprisingly, a fish. This usually throws people off, but a philosophy of Marvinists is to never judge a book by it’s cover. Moving forward, Marvin is a tall, pale and warm yellow fish with dark fuchsia or purple stripes in his fins. He also has off-white eyes with black pupils.
by jakepauler67 November 24, 2018
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A breakfast meal that consists of pancakes topped with sugar and lemon juice. Upon finishing the final bite the consumer will be stricken by rigamortis and be diagnosed with type 2 diabetes.
Guy 1 - "Where is my insulin? I can't find it"
Guy 2 - "It's over there, you have diabetes?"
Guy 1 - "Yeah, I got it after finishing my marvin"
by cock gargler October 28, 2012
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Guy A: "Hey, are you hungry?"
Guy B: "Shit yeah, im bloody marvin'!"
by Jonnle May 9, 2006
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