A legal term used when a lawyer doesn't know what the hell they are talking about or has a complete lack of knowledge on an area of law.
Also a term used when a lawyer cannot be sued for malpractice
Lawyer Lexi: Hey can you help me with my 10(b)(5) pleading?
Lawyer Larry: Uh no that's totally rule against perpetuities to me

Lawyer Lenny: Hey I heard you screwed up and are now being sued for malpractice
Lawyer Leslie: No I only screwed up the rule against perpetuities so they can't sue me
by LawraLaw April 29, 2010
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