1. To crouch or huddle into a small, cramped position. We all scrunched up so that the guards wouldn't be able to see us. Would the people in the front row mind scrunching up in their seats so the people in back can see better, please?

2. To squeeze, crush, or crumple something into a smaller shape, size, or space. A noun or pronoun can be used between "scrunch" and "up"; often followed by "into (something)." I scrunched the note up into a ball and tossed it across the room to Jake. Don't scrunch the newspaper up like that—it makes it hard to read!