spattery

adjective2

1. •
   Covered with or in the form of spatters.

   • […] he traced upon the paper, slowly, awkwardly, but without stopping once, a tangle of heavy, shaken, spattery lines, in which could nevertheless be recognized the signature of “Tarbox Button.” — 1874
2. •
   Accompanied or caused by spattering.

   • The rain went plop into the pools, and made a flattish, spattery sound on the rock. — 1920