sandwich (someone or something) between (someone or something else)
To force someone or something into a very narrow or constricted spaced between two other people or things. Often used in passive constructions. There weren't any restraining straps left, so I just sandwiched the last box between the mattress and the side of the moving van, hoping that it wouldn't come dislodged. I was sandwiched between two very large people for the entire flight from New York to London.
sandwich (someone or something) between (people or things)
Fig. to enclose someone or something on both sides between people or things in any combination. We had to sandwich the children between us because there were no other seats close by. We had to sandwich the package between Ed and the side of the bus.