To gain weight through extra fat "marbling". Term derived from cattle industry practice of fattening animals prior processing into food. This fat, streaked through the meat, provides extra flavor and richness.
Observing your friend downing a large bowl of ice cream, you say: "Marble up dude!".

Exclaiming to your ultra-fit skinny buddy: "You need to marble up!".
by D. Gilbert June 21, 2007
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When a guy rolls his balls all over a girls face leaving a snail trail of sweat.
Steve "I put my balls on her chin, then rolled them all over her face"

Pete "isn't that called marble madness"
by Tunameltmonkeyface April 26, 2013
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He kicked him right in his man marbles.
by GeeBird January 24, 2007
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a term used to express victory or defeat of another. also used as a term of endearment such as "booyeah"
(after a kill/defeat of in a game) he/she just lost all the marbles.

(after beating a song on guitar hereo) i've got all the marbles.

(after completing something difficult) i just got all the marbles
by The Chris Carnage. March 23, 2009
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A blowjob in which the blowjob giver puts marbles into their mouth. They then proceed to administer the blowjob with the marbles bouncing around their mouth.
“Did she give you marble-head last night.”
Yeah
by G. Jeremiah Pant. November 22, 2022
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"Marble Mouth" is a slang term used to signify people who possess a slight speech impediment. It's hard to describe, but it certainly has nothing to do with location or cultural background like one definition ridiculously stated. It's not that they stutter - they don't necessary. But it's obvious that speaking is not their strong suit and they sound as if they have a mouth full of marbles. Marble mouths, more than anything, are highly annoying because you just want them to spit the words out already.
Eli Manning. A perfect example of a marble mouth.

"Just waanted to go dowanfield and duhduh get the win."
by Stormvessel June 23, 2015
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Discriminatory barrier keeping a certain class of people out of an upper echelon of American government. Distinguished from a glass ceiling because not only is this class prevented from rising to the next level, they cannot even see what is going on up there.

Coined by incoming Speaker of the House Nancy Pelosi.
"When my colleagues elect me as speaker on January 4, we will not just break through a glass ceiling, we will break through a marble ceiling." - Nancy Pelosi, Jan. 3, 2007.
by Ben Frey January 3, 2007
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