糟老头

The literal meaning would be 'crappy old man'. It sounds self-deprecating on the surface, often humorously used by middle-aged men for modesty or humorous self-derision about getting older and possibly looking less impressive. This kind of naming is more commonly found in male internet users expressing a light-hearted attitude toward aging. But in some contexts, it may imply dissatisfaction or rebellion against traditional stereotypes associated with elderly men, or simply suggest the user has adopted a mature persona that comes across as a 'worn-out' old-timer.