The meaning of 'vinegar-visage'


Could you help me with the above underlined parts about:

  1. What does the ‘vinegar’ here refer to? Ill temper or liveliness?
  2. Does the queue mean braid? But he was a Frenchman!

Thank you.


A vinegar face is a sour or angry looking face.

‘Queue’ here means ‘pigtail’, which some men used to wear in the past, too.