Sandwich

1. an item of food consisting of two pieces of bread with a filling between them, eaten as a light meal.

   a ham sandwich

2. relating to a sandwich course.

   the degree includes a sandwich year

1. insert or squeeze (someone or something) between two other people or things, typically in a restricted space or so as to be uncomfortable.

   the girl was sandwiched between two burly men in the back of the car

mid 18th century: named after the 4th Earl of Sandwich (1718–92), an English nobleman said to have eaten food in this form so as not to leave the gaming table.