jam a gun

Raymond ChandlerのThe Big Sleep を読んでいます。
He grunted something and the girl's body jerked hard, as though he had jammed a gun into her back. She came on again and drew near the lightless car. I could see him behind her now, his hat, a side of his face, the bulk of his shoulder. The girl stopped rigid and screamed. A beautiful thin tearing scream that rocked me like a left hook.
一昨日 "jammed the car" を取り上げましたが、又 "jam" が出てきました。
文脈からすると "jammed a gun into her back" は拳銃を背中に押し付けた意味と推測できますが、辞書でこの用法を確認します。
・Oxford English Dictionary: Push (something) roughly and forcibly into position or a space.: he jammed his hat on
・Collins Dictionary: If you jam something somewhere, you push or put it there roughly.: He picked his cap up off the ground and jammed it on his head.
・Cambridge English Dictionary: to push something forcefully or with difficulty into something else: He jammed the boxes into the back of the car.
本当に "jam" は色々な意味で使われますね。