noun: Multiple film, resin, coatings, fabric and surface protectors made with PTFE (polytetrafluoroethylene) or fluoropolymer and surfactants not made with PTFE.
adjective: (informal, of a person) Having an undamageable reputation (by analogy with nonstick Teflon surfaces).
noun: polytetrafluoroethylene, PTFE
adjective: (figuratively) Non-stick, slick.
adjective: (figuratively, of a person) Able to easily shrug off or deflect criticism or blame.