(1):

(v. t.) To distribute by sprinkling; to sprinkle around; as, to spatter blood.

(2):

(v. t.) To sprinkle with a liquid or with any wet substance, as water, mud, or the like; to make wet of foul spots upon by sprinkling; as, to spatter a coat; to spatter the floor; to spatter boots with mud.

(3):

(v. i.) To throw something out of the mouth in a scattering manner; to sputter.

(4):

(v. t.) Fig.: To injure by aspersion; to defame; to soil; also, to throw out in a defamatory manner.