Understand it refers to a physical restraint used in prisons historically.

Literal Meaning

Rarely used in a modern context except to explain old punishment methods.

Not Contemporary

Implies a negative view of marriage or partnership, suggesting it's limiting.

Can be offensive, avoid using literally especially in formal situations.

Use it informally when speaking with friends, not in professional settings.

Represents something that hinders movement or progress, not a physical object.

Understand it expresses a concept abstractly; the chain isn't real.