The belief that perhaps humans should occasionally give a shit about other humans.

See also: Evolutionary adaptations that precipitate the continuation of life in the universe.
lol, Altruism? Why should I have to pay for someone elses' continued survival? Let natural selection take it's place *lol* (Three-billion years of multicellular evolution for nothing)
by monopole November 26, 2009
the principle or practice of unselfish concern for or devotion to the welfare of others
She has to much altruism.
by Emo Okami November 29, 2008
shit that means badasses doing nice things for a while then going back to being cool and black and stuff.
The motorcycle gang was in a state of altruism when they painted the old hookers house but then went back to usual by fucking the old mother fuckin bastard.
by iamnotanandrewtard January 15, 2012
Paradigm that kindness to a genetically diametric entity will increase language robustness in one's own tribe.

This is because increased male inheritance in one's in-group's offspring leads to greater language-variability.

Thus: language variability selects pressure for male cooperation.
Altruism exists because genes loop; genes loop because language loops.

Thus genes are based on language...
by metawave November 28, 2019
the deliberate pursuit of the interests or welfare of others or the public interest.
Wow, that Steve McGuire really hooked us up on Yankee tickets. Talk about altruism!
by TOUROFAIL September 23, 2009
Not removing from the gene pool (slowly, painfully) all the back-stabbing a-holes in your life.
"That *@#!*%#*! back-stabbed me so bad! He/She is lucky I believe in altruism!"

revenge betrayal mercy backstab benevolent
by Concupy August 10, 2009
When one's unsolicited help causes damage.
She has a terrible habit of intruding to help when not even asked for, which mostly ends in a disaster. That is the definition of toxic altruism.
by sandyzombie September 19, 2021