peanut butter and jelly

noun2

1. •
   (US) Peanut butter and jelly (or jam) that is spread on bread to make a sandwich.
2. •
   (US) A sandwich consisting of bread spread with layers of peanut butter and jelly.

   • On your average march you'll find you get through a good two peanut butter and jellies before you even get to where you're supposed to demonstrate — 1971