The Collaborative International Dictionary of English v.0.48:
dustup \dust"up\ n. an angry dispute. Syn: quarrel, wrangle, row, words, run-in. [WordNet 1.5]WordNet (r) 3.0 (2006):
dustup n 1: an angry dispute; "they had a quarrel"; "they had words" [syn: quarrel, wrangle, row, words, run-in, dustup]