Definition of self-dealing in English:

self-dealing

Pronunciation /ˌsɛlfˈdiːlɪŋ/

noun

US Law
  • Action or conduct in which a position of trust held by a trustee, company director, or the like is used for personal gain, rather than to serve the interests of beneficiaries, shareholders, etc.

Origin

1930s; earliest use found in Harvard Law Review.