If something is meshy, it has a lot of small holes like a net.
Meshy things can be used for catching things or for keeping things safe.
Examples:
The net is very meshy.
I don't like wearing meshy clothes.
The meshy fabric is good for making bags.
I got my head stuck in the meshy fence!
The meshy web caught a lot of bugs.
The meshy screen keeps the bugs out of the house.