What does APICES LITIGANDI mean?

APICES LITIGANDI meaning in Law Dictionary

exceptionally good points, or subtleties of litigation. Almost equal to the modern phrase "razor-sharp practice." "It is unconscionable in a defendant to take advantage of the apices litigandi, to make a plaintiff'around and also make him pay costs whenever his demand is simply" Per Lord Mansfield, in 3 Burr. 1243.