Respuesta :
(chiefly of large mammals) roll about or lie in mud or water, especially to keep cool or avoid biting insects.
OR
(of a person) indulge in an unrestrained way in (something that one finds pleasurable).
OR
(of a person) indulge in an unrestrained way in (something that one finds pleasurable).
Well, the definition is kinda like this: To lay down in water or mud. Basically if you "wallow" in anything its to lay down in it.