waste of skin
1
a person who is considered to be completely worthless or useless and is viewed as a burden or waste of space
The origin of the idiom "waste of skin" is not well-documented, but it likely evolved from the notion of skin being the outermost layer of the human body. It is used to describe someone in a derogatory manner, suggesting that they are useless, worthless, or have no redeeming qualities.
- Don't bother with that guy; he's lazy and unreliable, a complete waste of skin.
- He never contributes anything to the team; he's just a waste of skin.
- The boss called him a waste of skin after he made another costly mistake at work.