She 'sat bolt upright' [=she sat up straight] in bed when I entered the room.
There wasn't enough room to stand 'upright', so we had to bend over.
The 'uprights' of the structure were embedded in concrete.
(..) Are you sure this isn't a test? No, this is not a test. You're Mr Durden. You're the one who gave me this. Please return your seat backs to their full upright and locked position. - Yeah? - Marla, it's me. - Have we ever done it? - Done what? Had sex? (..)1999 Fight Club