Teflon Don · proper noun1
From teflon (“able to easily shrug off or deflect criticism or blame”) + don (“mafia boss”), after three high-profile trials in the 1980s resulted in acquittals.
Teflon Don · proper noun2
From teflon (“able to easily shrug off or deflect criticism or blame”) + Don (diminutive of Donald), for Trump’s supposed ability to dodge legal matters. Compare Dutch Teflon Mark.
Etymology from Wiktionary, CC BY-SA 4.0.