What can "Nice lines" mean here?
Is it some kind of a dance quality or a physical quality?

He's auditioning male str*ppers and announces who pass and fail. All the men wear 80's workout clothes like this except two shirtIess. There are 6 of them that pass. Can't see who the judge is talking to since all the dancers are off camera.[Audio][Image]

Question

What can "Nice lines" mean here?
Is it some kind of a dance quality or a physical quality?

He's auditioning male str*ppers and announces who pass and fail. All the men wear 80's workout clothes like this except two shirtIess. There are 6 of them that pass. Can't see who the judge is talking to since all the dancers are off camera.[Audio][Image]

Answer

Yeh, those guys have nice lines! Great shape/look good/fit etc. Not too muscular (body-builders on steroids do not have nice lines).

Male strippers usually have nice lines, though, to be honest, they do come in all shapes and sizes. Ladies/venues/club owners usually hire the type they prefer.

Answer

I had a hunch, but looking online I found the following, which confirms my hunch:

A line is a classical ballet term now used in many dance styles to describe the outline or shape of a dancer's body as they perform steps, sequences and poses.

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