press against (someone or something)
1. To push or lean against someone or something. There's a big piece of sheet metal pressing against the door we're trying to get open. Stop pressing against me, would you? You need to wait your turn like everyone else.
2. To push or lean someone or something against another person or thing. In this usage, a noun or pronoun is used between "press" and "against." She pressed him against the door and leaned in for a kiss. He just kept pressing his fingers against the side of his head. Please don't press your feet against me like that.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
press something against someone or something
to push or force something against someone or something. The person in line behind Betty kept pressing his elbow against her. I pressed my hand against the door and it opened.
press against someone or something
to push or bear upon someone or something. I pressed against Henry, trying gently to get him to move out of the way. Don't press against the glass door!
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.