1. To scatter or spread in drops or small amounts around (some area). Grease from the bacon started spattering around as it cooked in the pan.

2. To cause some substance to scatter or spread around (some area) in drops or small amounts. In this usage, a noun or pronoun is used between "spatter" and "around." Be careful with the way you're brushing—you're spattering paint around the whole room! The sculpting wheel began spinning around out of control, spattering globs of clay around all over the place.