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?"