square off

verb2

1. •
   (US, Canada) To get ready for a confrontation (debate, argument, fight).

   • Hey, man, don't square off on me with some bullshit. — 1984
2. •
   To increase the boxiness of (a design).

   • After the aeronautically inspired curvaceous designs of the 1930s and 1940s, many American automotive designs of the 1950s through 1970s were somewhat more squared off.