If you accuse someone of muck-raking, you are criticizing them for finding and spreading unpleasant or embarrassing information about someone, especially a public figure.
The Prime Minister accused opposition leaders of muck-raking.
A sapric is a subtype of a histosol where virtually all of the organic material has undergone sufficient decomposition to prevent the identification of plant parts. Muck is a sapric soil that is naturally waterlogged or is artificially drained.