Okay kiddo, so a guitorgan is basically a really cool instrument that combines a guitar and an organ.
You know what a guitar is, right? It's that stringed instrument that you strum or pluck to make music. And you've probably heard of an organ too - it's that big thing you sometimes see in churches that has all those pipes and keys that people play to make really fancy music.
Now picture a guitar, but instead of just making guitar sounds when you play it, it also has all these buttons and switches that let you make organ sounds too! So you can play it like a guitar OR like an organ, or even mix the two sounds together to make something totally unique.
It's kind of like having two instruments in one, and it can make some really amazing music. Pretty cool, huh?