splat

(noun) a single splash. Example: "He heard a splat as it hit the floor."

(noun) a slat of wood in the middle of the back of a straight chair.

(verb) give off the sound of a bullet flattening on impact.

(verb) split open and flatten for cooking. Example: "Splat fish over an open fire."

(verb) flatten on impact. Example: "The snowballs splatted on the trees."