can of worms

can of worms  {n.},  {slang},  {informal}
1. A complex problem, or complicated situation.
Let's not get into big city politics — that's a different can of worms.
2. A very restless, jittery person.
Joe can't sit still for a minute — he is a can of worms.
Categories: {informal} {n.} {slang}

'can of worms' on video