A "memester" is a person who consistently uses memes to make a point rather than type out a explanation. This person is usually semi-literate.
The memester was unable to defend his point about patriotism in writing so he posted another picture of Trump wrapped in the American flag.
Someone who loves memester to the point that almost everything has to do with memes for them.
"Wow, that guy is a real memester! He won't stop spamming us with memester!"