TIPS OVER is a phrase used to describe an object that has been turned upside down or overturned. UPENDS, KEELS, and UPSETS are all related terms that can be used to describe this action. UPENDS is a verb meaning to turn something over or to overturn it. KEELS is a noun referring to the center line of a ship or boat that runs from the bow to the stern. UPSETS is a verb meaning to disturb or to cause distress. All three terms can be used to describe the action of TIPS OVER.