nosh
1. noun, slang Food, especially a small meal or light snack. Let's get some nosh before we head off—I'm a bit peckish! You'll want a bit of nosh if you're planning on drinking all afternoon.
2. verb, slang To munch on some food, especially a small meal or light snack. He sat there happily noshing a chocolate bar and watching cartoons. I wish you wouldn't nosh at the desk like that—you always get crumbs everywhere!
nosh on (something)
To snack on something. He sat there happily noshing on a chocolate bar and watching cartoons.