Grinders and Poor boy

Poor boy and grinders are semantically related. In some cases you can use "Poor boy" instead a noun "Grinders".

Poor boy noun - A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States.

Grinders and poor boy are semantically related. Sometimes you can replace term "Grinders" with "Poor boy", this terms are similar.