Okay, so imagine a big guitar-shaped instrument that is really tall and almost as tall as a grown-up person. This instrument is called a cello. The cello is played by a special person who is called a cellist.
But the pogo cello is a little different. It's a smaller version of a cello that you can hold between your legs instead of standing up with it like a normal cello. It's also lighter than a regular cello, so it's easier to play while jumping around or bouncing up and down.
The pogo cello is kind of like a toy version of a cello that you can play while doing fun things like bouncing on a trampoline or jumping on a pogo stick. It's a lot of fun to make music on the pogo cello while jumping around, and you can play all different kinds of songs on it.
So, in short, the pogo cello is a smaller, lighter version of a cello that you can hold between your legs and play while bouncing around. It's like a musical toy that you can have a lot of fun with.