【喻】【谑】【贬】极懒的人（广州人以蛇为懒惰不愿动弹的动物，而死后就更不动了；又因鳝似蛇，也指为懒物）。

describes a very lazy person who is beyond hope; to describe someone who is reluctant to change their ways despite knowing that they are in the wrong; someone who is not putting in any effort to pull up their socks