The light of the noble gasses, at. no. 2, used as a lifting agent for zeppelins and balloons. If you inhale it, your voice will sound really funny like you're pinching your nose. Just don't asphyxiate yourself, or you'll be sorry.
When he let go of his balloon, it floated up into the air because of the helium inside it.
by eszett March 9, 2003
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Helium (from Greek: ἥλιος, romanized: Helios, lit. 'Sun') is a chemical element with the symbol He and atomic number 2. It is a colourless, odourless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Helium is the second least reactive noble gas after neon, and thus the second least reactive of all elements.

It is also widely known for its effect on a person's voice, it changes the tinder and not the pitch. The effect is very similar to Hydrogen when inhaled, and you can try it yourselves! - just don't inhale too much and be in an environment where fire or electricity is involved.
Oh god! Today I tried inhaling Helium! It was extremely fun!
by Grammar's Synonym Roll December 5, 2019
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Commonly inhaled, mostly by people named Ethan
"Ethan is inhaling helium again"
by Helium King April 30, 2018
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whoaaa.....helium
by JOSHY May 7, 2003
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Used to describe a female's breasts, in most cases large breasts. This comes from the idea that the breasts are inflated, or must be inflated to reach such a size. Can be taken as offensive because it is insinuating the female in question went to unnatural means to achieve the present size of her mammaries.
That girl is straight helium; Look at the helium on that one; Lemme get that helium!
by Malcolm OSX March 30, 2006
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a gay guy who likes to be on the bottom.usally a derogatory term.
"oh that guy acts all butch,but when you get him home he has helium heels"
by kenny browne September 3, 2006
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a type of cheese found in the Amazon on the backs of hump-belly toads
Break me off sum of that helium, Boy!
by JOSHY May 18, 2003
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