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1) A hard, brittle, bluish-white metal. It is the densest (heaviest) naturally occurring element of all known elements, with a density of 22.59 g per cubic cm.

2) What to call someone who looks seemingly skinny, but actually weighs a ton.
1) Did you know that Osmium was once used in phonograph needles?

2) Yo look at that Osmium over there. She may look lean, but I heard she weighs 200 pounds!
Related Words
Element #76 with the symbol Os, a.k.a. the bluest metal in the world. Although it might seem pretty, Osmium is far from being good jewelry or building material, unless you want things with unbelievably high costs. It's a relatively non-toxic substance, granted that you don't combine it with Oxygen. Its name comes from the Greek word "Osme", which means "smell", "scent", or "odor". This definition refers to the nasty volatile compound that occurs when you mix Oxygen with the latter. It's also an extremely heavy metal, weighing 5x more than Lead does.
Osmium is the heaviest, stable metal in the universe.
Osmium by CHNOPS July 8, 2020
The densest known element used to roast the density (stupidity) of your fellow peers.
Dude, Tony was so Osmium when he ran into that door!
Osmium by Cena Senior March 4, 2021
The length of time in which your girlfriend's gay roommate can do whatever, whenever, to your mouth, cock, ass, balls, and shaft and you can't tell him to stop.
Damn Stephen, can't wait for you and Adam to Osmium.
Osmium by cunds002 April 6, 2018
a food that is very delicious and mix between a pancake, a cake, a cupcake, and a crepe. Usually food dyed.
Yesterday morning we had oimium for breakfast.
oimium by Deathstarkille22 March 2, 2017

Stealthie 

when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.

This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"

FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"
Stealthie by gwenhyfar October 2, 2016
Word of the Day on May 25, 2026