what does it mean to drain off
drain off. To flow or move off of something. A noun or pronoun can be used between drain and off. Now that we've fixed the gutters, the rain should drain off of our roof nicely. See also: drain, off. drain something off something and drain something off to cause or permit something. to flow from the surface or contents of something. Drain some of the broth off the chicken. Drain off the fat at the bottom of the pan. See also: drain, off