To remain stuck in an undesirable or negative situation due to one's unwillingness to do something to change. Jane left you six months ago—it's time to stop wallowing in the mire and get back to living your life.
Fig. to experience an abundance of something. (Fig. on wallow (around) in something.) Roger and Wilma are just wallowing in money. Claire spent the entire day wallowing in self-pity. The villagers are all wallowing in superstition.