Ten pounds of shit in a five pound bag.
See that guy? What a blivot.
Yer mother is a blivot, like you.
Twenty pounds of shit in a ten pound bag. A situation or item that is foolishly perceived to be simple and easily manageable when if fact it is twice as complicated and unmanageable as first foolishly perceived.
When you tell your "Fun" friends to come over and hang out, and they tell their friends, and those friends tell their friends and so on, and you find yourself hosting a huge houseparty. You say to yourself retorically "Well isn't this a blivot?"