crush (up) against (someone or something)
To have a heavy physical impact on someone or something. Molly had to go to the hospital after the door in the lobby crushed up against her hand. The singer's screaming fans crushed against the fence in front of the stage.
crush (up) against someone or something
to press hard against someone or something. The crowd crushed up against the people standing in line. The eager theatergoers crushed against the lobby doors.