
Skinflint
Negative Connotation
Skinflint has a negative tone, implying excessive frugality that may appear selfish or ungenerous. 
Informal Usage
The term is informal and may be considered disrespectful if used in formal situations or with strangers. 
Cultural Perception
Some cultures may not view frugal behavior as negatively as others, so the impact of 'skinflint' can vary. 