Someone who, when disproven with a credible source, denies it and insults you.
WARNING ! DO NOT ASK THEM FOR PROOF, OR ANY SOURCE BACKING UP THAT WHATEVER YOU SAY IS FALSE, THEY WILL BLOCK YOU !
Person 1: Dude! Dwayne is such a Free-Palestiner!
Person 2: I know right! Every time we argue, he just says that I'm lying and insults me! What am I even lying about?
Person 1: Dude same! And when I asked him what I was lying about, he blocked me!
Person 2: What a douche man!