be lost careen come a cropper culbuter fall fall down fall flat fall headlong fall over fall prostrate flounder founder get a cropper go down invert keel keel over list lurch overset overthrow overturn pitch pitchpole scuttle sink somersault sprawl spread-eagle stagger stumble subvert take a fall take a flop take a header take a pratfall take a spill tilt tip over topple topple down topple over topsy-turvify topsy-turvy totter trip tumble turn a somersault turn over turn topsy-turvy turn turtle turn upside down upset upset the boat upturn