micrognathia is a condition where the lower jaw is abnormally small, resulting in a very weak chin. People with micrognathia looks extremely ugly and is very annoying to look at. Most of them got personality disorders too. In conclusion, they should be executed immediately. Someone should start a genocide on people with micrognathia soon.
Guy 1: Oh shit! My CT scan result came in, I have final stage cancer!
Guy 2: At least it's not micrognathia
It's slang for what the drug dealers from Rio de Janeiro do with the police informants (or X9) and his enemies. They put a person into a pile of tires, they throw some kind of fuel, and then they set fire on you.
As you must know; it is a horrible way to die!
Traficante: "Seu X9 filho da puta, tu vai pular no microondas!"
Drug Dealer: "You mother fucker police informant, you'll die burning in fire!"