Urban Dictionary: the Teflon Don, a nickname given to John Gotti because he was charged with different crimes multiple times but he was never convicted (before he was finally convicted).
John (Teflon Don) Gotti, N.Y. crime boss, was brought down by Robert Mueller (years ago)... Maybe history will repeat for another active Teflon guy Donald Trump...
I never thought I would defend the Mafia, but I will tell you something John Gotti never did do. He did not conspire with any country to destroy his ancestor's country, Italy nor his own country, the USA. Meaning, Gotti was a warrior and a criminal, but he did not betray his own country.