Real Dictionary

wallow
verb: If you say that someone is wallowing in an unpleasant situation, you are criticizing them for being deliberately unhappy.

wallow in American English
to roll about or lie relaxed, as in mud, dust or water
intransitive verb: to roll about or lie in water, snow, mud, dust, or the like, as for refreshment
noun: an act or instance of wallowing

wallow in British English
(esp of certain animals) to roll about in mud, water, etc, for pleasure
noun: the act or an instance of wallowing