Swear at

[…] in several instances there was another and quite a different red in the gown, which “swore” at its relative on the parasol.

Coal-scuttle poke-bonnets, short and scanty skirts, huge splay feet arrayed in indescribable shoes and boots, colours which swore at each other - these were the outward and visible signs of the British fair of that day.

One protester was arrested after swearing at a police officer.