The kids went to school

What? I don’t understand

The big yellow monster is a school bus. Human kittens are children. The kids go inside (are eaten by) the school bus and it takes them away only for it to spit them out again later. It's a cat mostly waiting for their owner’s kids to come back home again from school and is also possibly questioning their intelligence for always falling for the big yellow monster’s trap (like the children are the bus’ prey.) It's my attempt at showing how a cat might potentially perceive the situation since they lack the context of what is really going on.

Tldr: it's a meme about kids going to school as told by a cat that has a lack of context or understanding about the concept of school buses and school.