Boomeranged

Past tense of boomerang; came back to affect the person or group that caused it, like an Australian boomerang that returns to the thrower.

From 'boomerang' + '-ed'. Boomerang comes from Dharug (Aboriginal Australian language) 'bumarang,' adopted into English in the 1800s. The metaphorical use emerged as the returning weapon became a symbol for actions with unintended consequences.