scrape (something) off of (something)
scrape (something) off of (something)
To remove something from some surface with or as with the vigorous scrubbing of a rough, sharp, or hard-edged instrument. He used a putty knife to scrape the old paint off of the wall. I had to use my fingers to scrape the mud off of my windshield.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.