transitive verb
1. : to compose with facility : produce in an effortless manner
struck off a sonnet for the occasion
2. : to depict clearly and exactly : hit off
had too much phlegm to strike off the grand passions or reach the sublime parts of painting — Tobias Smollett
3. : to remove excess freshly placed concrete, mortar, or plaster from (a surface) by operating a straightedge over the forms or screeds