Answer: cussed

AnswerCrossword Clue
CUSSEDTalked a blue streak?
CUSSEDSwore
CUSSEDPerverse, informally
CUSSEDStubborn
CUSSEDShouted oaths at
CUSSEDSaid a swearword
CUSSEDUttered bad words
CUSSEDUsed colorful language
CUSSEDObstinate
CUSSEDCantankerous
cussedStubborn; annoying
cussedCUSS, to curse (to invoke evil upon)