From be- + spatter.
bespatter (third-person singular simple present bespatters, present participle bespattering, simple past and past participle bespattered)
- (transitive) To spatter or cover with something; sprinkle with anything liquid, or with any wet or adhesive substance.
- (transitive) To soil by spattering.
- (transitive, figuratively) To asperse with calumny or reproach; shend.