Okay, so you know how sometimes grown ups like to make up silly rhymes and verses that are funny and not too serious? That's kind of like what light verse is. It's poetry that's meant to be entertaining and enjoyable to read, without being too complicated or deep.
In light verse, the words will often rhyme with each other, like "cat" and "hat", or "dog" and "log". The poet might also use a certain rhythm or beat to make the poem sound pleasant when someone reads it out loud.
Usually, light verse isn't trying to teach you anything important or make you feel super strong emotions. Instead, it's just meant to be fun and lighthearted. Think of it like a little break from serious stuff, like when you get to play with your favorite toys instead of doing your homework.