1 : an idea, belief or belief system, or pattern of behavior that spreads throughout a culture either vertically by cultural inheritance (as by parents to children) or horizontally by cultural acquisition (as by peers, information media, and entertainment media)

2 : a pervasive thought or thought pattern that replicates itself via cultural means; a parasitic code, a virus of the mind especially contagious to children and the impressionable

3 : the fundamental unit of information, analogous to the gene in emerging evolutionary theory of culture
- meme pool (n.) : all memes of a culture or individual
- memetic (adj.) : relating to memes
- memetics (n.) : the study of memes

4 : in blogspeak, an idea that is spread from blog to blog

5 : an internet information generator, especially of random or contentless information

(Etymology : meme : derived from the Greek mimëma, 'something imitated', by Richard Dawkins in 1976)
by Emme December 10, 2003
Memes (rhymes with dreams) are similar to a computer virus, in the way they spread quickly over a network, or group of computers. The difference is that they are a sort of virus of the human mind. An idea, or thought that spreads quickly, or one that occupies your thoughts that is tough to remove.
Begining a chant at a ball game or rally. A new dance craze. A song that you hear that you just can't get out of your head.
by BigT May 7, 2005
A commonly used medium of communication, to vent social struggles in a comidic tone, such that no one will disagree with you, or how you're handling the situation.
Sally posted a hilarious meme about how her boyfriend never texts her goodnight.

Why don't they just talk it out?

Fuck that shit, bro.
by Redditranger November 19, 2016
Something that is created by the internet. With lots of humour and jokes, viral videos or pictures. Usually get old over time.
Friend 1:Memes don't have an expiration date.

Friend 2:Do you know de wae?

Me:Memes DO have an expiration date!
by That1GirlGamer March 23, 2018
The meme that everyone knows about, so you don't even have to describe it. It's just that meme
"ayyyyyyy! Look at this dude!"
"Hah! He looks like the guy in That Meme"
"omigod he DOES!"
by Command C Command V December 11, 2019
gets old in few weeks and dies in few months
This meme is dead already, but it is still good
by smertieboi February 21, 2019