Pet·ti·fog v. i. [imp. & p. p. Pettifogged p. pr. & vb. n. Pettifogging ]
  1. To do a petty business as a lawyer; also, to do law business in a petty or tricky way. “He takes no money, but pettifogs gratis.”
  pettifog
       v : argue over petty things; "Let's not quibble over pennies"
           [syn: quibble, niggle, bicker, squabble, brabble]
       [also: pettifogging, pettifogged]