massacrer

to massacre (to kill); to botch (to do something badly)

“Il a massacré cette chanson.” — He sang that song really badly.

Inherited from Middle French massacrer, from Old French macecrer, macecler, probably from Vulgar Latin *matteuculāre, from *matteuca (whence French massue), from *mattea or Late Latin mattia, from Latin mateola (“hoe”).