sandsoap

noun

1. (countable, uncountable)A kind of soap with embedded grains of sand, giving it a coarse, gritty texture, and used for exfoliation or for scrubbing residue from smooth surfaces such as pots and pans.

   “He filled a basin with water, and, with an old brush and piece of sandsoap, attacked the stove.”

   “Pa and the two children washed and polished all the windows, and Henry scrubbed B. Singlet's sign with sandsoap and a brush.”