Kagontle
A Kagontle is someone who doesn’t give a damn about your feelings and will say the worst thing ever just because it’s funny.
You asked for his opinion on your crush. He said she was more attractive than a bag of chips but less smart.
You told him you were going to win the game. He said you were going to lose and cry like a baby.
You bragged about your money. He said you were broke and your piggy bank was sad.