red rag
noun
something that arouses anger; a provocation; red flag: A mere mention of the incident is a red rag to him.
Origin of red rag
First recorded in 1690–1700
Words nearby red rag
red pepper,
red pine,
red planet,
red poll,
red pulp,
red rag,
red rattle,
red reflex,
red ribbon,
red river,
red river war
British Dictionary definitions for red rag
red rag
noun
a provocation; something that infuriates
Word Origin for red rag
so called because red objects supposedly infuriate bulls