ELI5: Explain Like I'm 5

Improvised weapon

An improvised weapon is something you can use to defend yourself or attack someone, that wasn't originally meant to be a weapon. For example, if you pick up a stick or a rock to hit someone, that's an improvised weapon. It's like using something you found in your backyard or on the ground, instead of going to a store to buy a weapon. It's important to remember though, that using any kind of weapon, improvised or not, can be dangerous and should only be used as a last resort to protect yourself.