The American Heritage® Dictionary of the English Language, 4th Edition
v. To spatter with or as if with mud: "a thoughtful, anti-activist judge being bespattered with charges of racism, sexism, hypocrisy and dishonesty” ( William Safire).
v. To spatter or cover with something; sprinkle with anything liquid, or with any wet or adhesive substance.
v. To soil by spattering.
v. To asperse with calumny or reproach; shend.
the GNU version of the Collaborative International Dictionary of English
v. To soil by spattering; to sprinkle, esp. with dirty water, mud, or anything which will leave foul spots or stains.
v. To asperse with calumny or reproach.
The Century Dictionary and Cyclopedia
To soil by spattering; sprinkle with anything liquid, or with any wet or adhesive substance.
Figuratively, to asperse with calumny or reproach.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. spot, splash, or soil
Word Usage
"So when the king is a horseback he is sure to be the dirtiest person of the company, and they that make their court best are such as bespatter him most."