splasher

noun

1. Someone who splashes.

   “They gave her room, all right, especially if her medium happened to be water color, as Judy was a grand splasher and spared neither water nor paint.”

2. (dated)A guard to keep off splashes from anything; especially, one of the guards over the wheels of a carriage, locomotive, etc.

   “No. 6959 is painted in the standard wartime black livery and, like its immediate predecessors, does not carry a nameplate, but the words "Hall Class" have been painted on the middle coupled-wheel splasher.”

3. (Multicultural-London-English, slang)A knife used as a weapon.

   “Juice man up with this 15 inch Like, now I got blood on my splasher”