Expelliarmus is the Disarming Charm : it makes an opponent drop whatever they’re holding, usually a wand.

What it does

  • It forces the target to let go of the object in their hand.
  • In duels, it is most often used to knock a wand out of someone’s grip.
  • The spell is known for being a nonlethal way to neutralize an opponent.

In simple terms

If someone casts Expelliarmus on you, your wand may fly out of your hand, leaving you disarmed.

Quick note

Some fan discussions mention that it can look more dramatic on screen, but its core effect is still disarming the target.