A style of writing or speaking heavily emphasizing the abstruse technical vocabulary of the law, to the point where a speech or document may be incomprehensible to non-specialists.

a style that uses the abstruse technical vocabulary of the law

Layman's term for the sometimes lengthy, complex, and exclusionary lingo of lawyers and other legal professionals.

The specialized language spoken, written and understood among those who work in the legal profession, such as attorneys.