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Used in two forms, the former used more popularly;

1. Kg/m^2 of living materials in an ecosystem

2. Mob of people, population
Dude, look at that huge biomass of mutant radioactive zombies!
biomass by suicidoll June 11, 2006
Words you can keep
I just did a huge biomass at the National Gallery toilet.
biomass by P3 EDay 2 April 28, 2010
When all that's left of you is your body, and your soul has evacuated... i.e. to perish, to die, often by ones own hand. Often cited in the videogame 'EVE Online' due to an affect that happens to your character when it dies, resulting in a corpse floating in space with the item category: 'biomass'.
Person 1: Hey, I just spent my last 2$ to my name on a lottery ticket and got nothing back... can you hook me up with a smoke?
Person 2: Bro, just Biomass.
biomass by M0tan April 11, 2017
Alternative definition of a morbidly obese ham planet/land whale.
Omg, a biomass in a Walmart wheelie cart almost ran my ass down to get his/her chubby hands on the sale cookies!
Biomass by Kodydapony February 3, 2018
A word for the Russian human-wave tactics. A person is only worth as another faceless suicide runner. Therefore, they are essentially biomass, humans, but not really as they are only for mindless massacre.
"These Russian soldiers, the way to suicidally run towards enemy fire, they really are just biomass."
Biomass by KyoshiroOfHonor March 21, 2023

waste of biomass 

A term used to refer to someone who is so stupid and pointless that their existance is a waste. It literally means that the organic matter that makes up their body could have ben put to -much- better use, such as maybe making a few cats, or some bugs, or even a few trillion bacteria, all of which would be more beneficial to the earth than the sorry excuse for a human being referred to.
Most of the kids at my school are nothing but big wastes of biomass.
waste of biomass by RZ October 5, 2003
A term or exclamation used to describe something that is not just good, not just amazing, but something beyond.
as an exclamation:
-yea ill send you a free three n'half. consider it a sample.
-Boomass!
or a sentence:
-this bud is boomass.
boomass by Jengo Starr April 16, 2007
More from Urban Dictionary

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026

young pup 

a young person, a young adult in their late teens/early 20s.
Ah, you're just a young pup at 23!
young pup by the dog May 30, 2006
Word of the Day on August 25, 2026
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