Possible Clues:

• Lurch from side to side
• It's on the road, even if you make it sway to one side
• It may be driven, even if you scrape the bottom of it
• For 7 down, even when you turn it on its side
• For transport, even when you turn it over
• On the road, even if you do it to a ship on the side
• It's on the road, even if it may over on one side
• Veer widely and wildly
• By all accounts one is never back to get the turnover
• Turnover for a scrape, even if it's after being on the road