You can use a Dash Jump to set up a Corner Boost on specific surfaces.
An example of such a surface is the Brick Walls found in lane, two of which exist: square walls, found on the Amber side of the map, and rounded walls, found on the Sapphire side of the map. However, you can Corner Boost off nearly every object that has a corner or curved surface.
To execute, Dash Jump into the side of an object, quickly look away to prevent mantling and Wall Jump. If done correctly, you should Corner Boost.