The Collaborative International Dictionary of English v.0.48:
Quibbler \Quib"bler\, n. One who quibbles; a caviler; also, a punster. [1913 Webster]WordNet (r) 3.0 (2006):
quibbler n 1: a disputant who quibbles; someone who raises annoying petty objections [syn: quibbler, caviller, caviler, pettifogger]