Is ‘Prettyboy’ a compliment?

I think it’s usually a compliment but in my situation I’m not sure.

My boss was explaining to me what Labor Day benefits were.
I didn’t quite understand, I thought Labor Day was a holiday (Off day)

So she said

“Pretty boy over here doesn’t know what September 6th means”
When she was talking to my supervisor

She wasn’t being rude though, she said it in a playful manner
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Is ‘Prettyboy’ a compliment?
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