Yes, calling someone a "scab" can be considered offensive, particularly in the context of labor relations. The term is often used to describe someone who works during a strike or replaces striking workers, and it carries strong negative connotations among union members and labor activists. Using the term can lead to conflict and may be viewed as disrespectful or derogatory. Context and intent are important, but generally, it is advisable to avoid using such charged language.
Scab
A strikebreaker (a bit obvious) or a scab.
When you get a cut, it fresh. Few days later it drys. Then what you call a (scab) is dead skin.
A scab is a person who goes to work when the Union have called a strike.
scab
a kufuzelanter
a scab
clot
The way to heal a scab on the scalp of a person's head depends on the size, and what caused the injury. A smaller scab could be healed by using peroxide. A large scab may need to be looked at by a doctor to determine the best treatment.
A scab.
It is not illegal to call someone a scab, as it is considered a derogatory term for someone who continues to work while others are on strike. However, it may be considered offensive or disrespectful in certain contexts.
If he goes to work at the business that's on strike he's called a scab. If where he's working is not on strike he's just called a mate.