Resembling a bandbox; neat, orderly, or having a trim appearance; sometimes used to mean stiff or overly formal.
From bandbox plus the informal adjective suffix -y, meaning 'having the quality of.' This is a less formal variant of bandboxical.
A bandboxy appearance meant you looked like you'd just stepped out of a shop window — it was sometimes a compliment (very neat) but often a criticism (too stiff and artificial for natural elegance)!
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