polemic

belligerent contrary eristic

combative contentious controversial disputatious factious fire-eating having a chip on one's shoulder litigious opinionated polemical pugnacious quarrelsome salty scrappy spiky touchy

spat

altercation beef bicker bickering blowup bone brawl brush clash contention controversy crusher debate difficulty disagreement dispute dustup exchange face-off feud fight finisher flap fuss gin go hassle knockdown out quarrel rhubarb romp row ruckus ruction rumpus run-in scene scrap set-to shindy squabble static stew tiff word words wrangle

bone of contention bone to pick brannigan difference of opinion donnybrook falling-out knock-down-drag-out

agreement calm ease friendship harmony peace