Just as the phrase implies. A giant oozing, animal of a dump.
"Hey Frank, I just painted a bus with my colon magma. Come look!"
by Marquis70 April 28, 2008
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Egg magma - another word for spunk, man juice and cum
Etna: hey noris your lookin hot maybe we should get closer?
noris: no! how about u suck me off so you can make my penis volcanoe erupt and spert egg magma all over your face!
by Jay Russell April 19, 2005
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Refering to a person who has red hair or someone who was born with red hair, another name for a ginger or a day walker or a fire crotch. Someone who has freckles and pale skin with red hair is also a magma child or a pinecone pincher.
Tiffany is a magma child because she has red hair and a fire like crotch colored pubic hairs.
by guyguygirlgamerzs August 17, 2009
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Description: Hot sticky goo that oozes from a freshly sucked penis.

"Man, that bitch drank every drop of my magma malt".
by brent and steve October 26, 2006
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The product that comes when person A gets anal really really rough by person B, so hard that person A may have gotten some minor cuts and/or tears of the anus/rectum. Then person B discreetly grabs a bottle of rubbing alcohol and douses person A's anal region, causing pain and anguish while purposefully trying to get the majority inside the rectum.
"dude i heard that chick ended up with some magma mud the other day"

"no way, that's sick"
by kavik_ November 20, 2009
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