When a friend is a tingo, he isn't actually a friend. Tingos take advantage of their friends by repeatedly borrowing items from their home until nothing is left. He's that friend who asks to borrow your lawnmower, your stepladder, your 4x4, your bed, your wife, your kids, and the clothes off of your back.
It could be taken literally or figuratively, but in either cases, wherever a tingo is involved, you can be sure that there's an idiot who's letting him borrow everything he can lay his hands on. Two sides to the same coin.