from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
BEAU PLEADER, Eng. law. Fair pleading. See Stultiloquium.
2. This is the name of a writ upon the statute of Marlbridge, 52 H.
III. c. 11, which enacts, that neither in the circuit of justices, nor in
counties, hundreds, or courts baron, any fines shall be taken for fair
pleading; namely, for not pleading fairly or aptly to the purpose. Upon this
statute this writ was ordained, directed to the sheriff, bailiff, or him who
shall demand the fine; and it is a prohibition or command not to do it. Now
Nat. Br. 596 2 Inst. 122; Termes de la Le 2 Reeves' Hist. Eng. Law, 70
Cowel; Crabb's Hist. of the Eng. Law, 150. The explanations given of this
term are not very satisfactory.