pile into (something)
1. To enter into something in a rough, disorderly fashion. We had Jake and all his friends pile into the van after their soccer practice. OK, everybody pile into the train, the doors won't stay open for long!
2. To gather and load a large number of people or things into something, especially in a rough, disorderly fashion. In this usage, a noun or pronoun can be used between "pile" and "into." Jake's car was broken, so Samantha just piled us all into hers. You can just pile all those books into my backpack.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
pile someone into somethingand pile someone in
to bunch people into something in a disorderly fashion. She piled the kids into the van and headed off for school. She piled in the kids and closed the doors. Pile them in and let's go. They piled themselves into the car and sped off.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
Move in a disorderly group into, crowd into, as in The team piled into the bus. The related expression pile in takes no object, as in Jack opened the car door and yelled, "Pile in!" [First half of 1800s]
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.