YARV

Okay kiddo, so yarv stands for "Yet Another Ruby VM". VM means "Virtual Machine," which is kind of like a computer inside a computer.

Now, Ruby is a computer language used for creating software programs. Yarv is a type of program that helps Ruby work better and faster.

Think of it like a brain that helps your body move and do things. The brain (yarv) helps the body (Ruby) to work smarter and faster.

That's a very simplified explanation, but I hope it helps!