Top definition
Someone who not only believes the Earth is flat, but will also claim any argument against their theory is government propaganda.
I hear Bob is a Flat Earther. We should send Bob up into space so he can get a harsh dose of reality.
by A Random Homo Sapien July 22, 2017
Get the mug
Get a Flat Earther mug for your papa Manley.
2
a person who does not accept or is out of touch with the realities/ beliefs of modern times;

one who blatantly dismisses/ disagrees with common knowledge or scientific findings.
Joe doesn't even believe the planet is round, or that we landed on the moon... he's a flat earther.
by G-Money12321 November 10, 2013
Get the mug
Get a flat earther mug for your father-in-law James.
3
Being a Flat Earther is a lifelong developmental disability that affects how people perceive the world and interact with others. Flat Earther people can have difficulties with everyday social communication, social interaction, repetitive behaviours and sensory issues
Flat Earthers = Idiots
by ZJaeger1179 April 15, 2018
Get the mug
Get a Flat Earthers mug for your dad Günter.
5
A separate line of the genus homo sapiens (Humans) who believe that earth is flat. They lack in comprehension and learning skills seeing they believe earth is flat which is of course WRONG.
Random people in the internet: Earth is actually flat, get your facts right.
Me: Hahahahaha, flat earther are stupid
by deathlol November 14, 2017
Get the mug
Get a flat earther mug for your sister-in-law Julia.
6
A Flat Earther is a person who pursues the belief that the world is flat, and tries to discredit centuries of astronomical discovery and scientific advancement, based on a childlike limited understanding of science and religion. No amount of proof or evidence will convince a Flat Earther that the earth is round like a ball, because their brain lacks the capacity to understand this reality.
Because he is a Flat Earther, he believes that if you go up high enough in a balloon, you can see all of the continents at the same time, because he thinks the world is flat.
by Moving Forward March 06, 2018
Get the mug
Get a Flat Earther mug for your Facebook friend Georges.
7
In Indonesia, also used for people from Islam-related organizations (FPI, FUI, PKS) and their followers that is too easy to be fooled, too easy to believe their preacher/ulama. Even though what they say and do violated Islam rules, like rejecting to pray for dead body just because he/she voted for that religion blasphemy accused governor (Ahok) when alive.

In Indonesian, said as "kaum bumi datar". This term also comes from flat earth concept. Their preacher used to talk about flat earth in mosques over and over again before Jakarta governor vote campaign started.
Flat earthers are crazy. I used to think that rejecting dead body (to be managed) is just a joke, now it really happened to an old woman in Jakarta.
by fitsa hats March 29, 2017
Get the mug
Get a flat earther mug for your friend Trump.