A type of spam which orders it's readers to spread it around. Commonly found in youtube, stupid kids actually obey what it tells them to do, thus resulting in more spam.
*You will die in 10 days if you do not copy and paste this on 30 other videos by then.
*Copy and paste this if self-sustaining spam was a waste of your time.
*Copy and paste this if self-sustaining spam was a waste of your time.
by Nino E July 3, 2008

(Acronym: SAF) A term used to describe an aviation jet turbine fuel that meets the criteria of the Sustainable Aviation Fuel Users Group (SAFUG) and/or the Roundtable on Sustainable Biofuels. It is typically created from second generation biofuel feedstocks, such as algae.
"Sustainable Aviation Fuel is going to revolutionise the airline industry"
or
"SAF is a good investment"
or
"SAF is a good investment"
by dictionaryonline789 January 7, 2010

by Pancake Hater May 22, 2023

A travel style preferred by tree-huggers and hippies. Often times, the vegan will immediately declare themselves a vegan, and then declare and try to enforce a sustainable viewpoint on helpless plebs that are still eating that delicious hamburger.
Did you hear about those tree-huggers flying a plane on solar energy around the world? Yeah, neither did I. Apparently that's sustainable travel, it'll never be mainstream though, so it's mostly for hipsters.
by Jaw112211 August 17, 2016

My mind, my face, it's all yours at the end of the day. My life, my name, it's all yours to reflect and sustain. awwww shucks!
by BitchinRemodels May 31, 2024

Bob: "How do you like my new sustainable streetwear by Drop Clothing?"
*Silence*
Believe it or not but Bob is still alone with his clothing.
This is SUSTAINABLE STREETWEAR.
*Silence*
Believe it or not but Bob is still alone with his clothing.
This is SUSTAINABLE STREETWEAR.
by DROP CLOTHING July 19, 2023

A sustainable ant colony is an ant colony that feeds off of a male's semen, usually a horny teenage boy excited by the ants eating his love sauce. The teenage boy then most likely receives a maternal feeling by feeding his 'ant children'.
"Hey, don't tell anyone this but... I have a sustainable ant colony in my room that feeds on my jizz."
by #1 Education Place February 25, 2020
