Okay kiddo, have you ever heard of pirates and their swords? Well, a cutlass is a special kind of sword that pirates used to use!
It's really different from the swords you might see in movies or video games because it's shorter and has a curved blade. It's kind of shaped like a letter "S". The curved shape helps the pirate to swing the sword faster and with more force!
Cutlasses were not only used for fighting though. Pirates also used them when they needed to chop ropes, or cut open doors. They could even use them to pry open treasure chests!
So, to sum it up, cutlasses are special swords that pirates used to use. They are shorter than regular swords, have a curved blade and can be used for more than just fighting!